Huawei H60-L04 Simplified Maintenance ManualH60-L04 Simplified Maintenance Manual Issue 1.0 Date 2014-09-04 HUAWEI TECHNOLOGIES CO., LTD

H60-L04 Simplified Maintenance Manual

Issue 1.0

Date 2014-09-04

HUAWEI TECHNOLOGIES CO., LTD.

Issue 1.0 (2014-09-04) Huawei Proprietary and Confidential

Copyright © Huawei Technologies Co., Ltd.

i

Copyright © Huawei Technologies Co., Ltd. 2014. All rights reserved.

No part of this document may be reproduced or transmitted in any form or by any means without prior

written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective

holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and

the customer. All or part of the products, services and features described in this document may not be

within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,

information, and recommendations in this document are provided "AS IS" without warranties, guarantees or

representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the

preparation of this document to ensure accuracy of the contents, but all statements, information, and

recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base

Bantian, Longgang

Shenzhen 518129

People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

http://www.huawei.com/

mailto:[email protected]

H60-L04 Simplified Maintenance Manual About This Document



ii

About This Document

Author

Prepared by R&D Date 2014-08-27

Reviewed by Maintenance support team Date 2014-09-04

Approved by Service representative Date 2014-09-04

Change History

Date Version Revision Reason Author

2014-08-27 V1.0 Released the first

version.

R&D

H60-L04 Simplified Maintenance Manual Contents



iii

Contents

About This Document ............................................................................................................... ii

1 Overview ................................................................................................................................... 1

1.1 Applicable Scope .............................................................................................................................................. 1

1.2 Brief Introduction ............................................................................................................................................. 1

1.3 How to Obtain Product and Maintenance Information .................................................................................... 1

2 Product Overview..................................................................................................................... 2

2.1 Appearance ....................................................................................................................................................... 2

2.2 Specifications ................................................................................................................................................... 3

3 Exploded View ......................................................................................................................... 7

4 Spare Parts ................................................................................................................................. 9

4.1 Commonly Used Parts ...................................................................................................................................... 9

4.2 How to Obtain Part Numbers ......................................................................................................................... 12

5 Software Upgrade................................................................................................................... 15

5.1 Upgrade Preparation ....................................................................................................................................... 15

5.2 Checking the Software Version ...................................................................................................................... 16

5.3 How to Distinguish Between Software Versions ............................................................................................ 16

5.3.1 Software Types ...................................................................................................................................... 16

5.3.2 Software Naming Convention ............................................................................................................... 17

5.4 How to Obtain the Version Software .............................................................................................................. 17

5.4.1 Method 1 ............................................................................................................................................... 17

5.4.2 Method 2 ............................................................................................................................................... 19

5.5 Using the microSD Card for Upgrade ............................................................................................................ 19

5.5.1 Normal Upgrade .................................................................................................................................... 19

5.5.2 Forcible Upgrade .................................................................................................................................. 21

5.6 Troubleshooting Upgrade Failures ................................................................................................................. 21

6 Maintenance Tools ................................................................................................................. 22

7 Disassembly Procedure ......................................................................................................... 24

8 Assembly Procedure .............................................................................................................. 28

9 FAQs ........................................................................................................................................ 34

H60-L04 Simplified Maintenance Manual Contents



iv

9.1 My phone sometimes stops responding or restarts after running for a period of time. What can I do? ......... 34

9.2 I forgot the screen lock password. What can I do? ......................................................................................... 34

9.3 My phone responds slowly after it runs for a period of time. What can I do? ............................................... 36

9.4 How do I check my phone's Wi-Fi/Bluetooth/SN information? ..................................................................... 37

10 Troubleshooting ................................................................................................................... 39

10.1 Power-on Failure .......................................................................................................................................... 39

10.2 Restarts and Screen Freezing ....................................................................................................................... 43

10.3 Overheat and Short Standby Time ................................................................................................................ 44

10.4 Charging Failure ........................................................................................................................................... 45

10.5 No Ringtone ................................................................................................................................................. 46

10.6 Receiver Failure ........................................................................................................................................... 46

10.7 Microphone Failure ...................................................................................................................................... 47

10.8 Weak or No Reception.................................................................................................................................. 48

10.9 SIM Card Detection Failure ......................................................................................................................... 49

10.10 Camera Failure ........................................................................................................................................... 49

10.11 Touchscreen Failure .................................................................................................................................... 50

11 Quality Inspection Procedure and Methods ..................................................................... 51

11.1 Inspection Flowchart .................................................................................................................................... 51

11.2 Inspection Tools............................................................................................................................................ 52

11.3 Instruction Instructions ................................................................................................................................. 54

11.3.1 Battery Test ......................................................................................................................................... 54

11.3.2 Current Test ......................................................................................................................................... 54

11.3.3 Charging Test ...................................................................................................................................... 55

11.3.4 MMI Test ............................................................................................................................................. 55

11.3.5 MT ....................................................................................................................................................... 68

H60-L04 Simplified Maintenance Manual 1 Overview



1

1 Overview

1.1 Applicable Scope

The H60-L04 Maintenance Manual is available in the simplified and advanced versions. The

two versions are respectively applicable to common service centers and advanced service

centers authorized by Huawei. The simplified version provides maintenance and repair

instructions for technicians at common service centers to conduct services of level 1 and level

2. Being Huawei proprietary, this document is accessible only for authorized service centers.

Although every effort was made to ensure the accuracy of the document, errors may still exist.

If you find any errors or have any suggestions, please report them through Huawei service

platform ComPartner.

1.2 Brief Introduction

This document introduces the product features, mechanical parts, assembly and disassembly

procedures, and common troubleshooting methods. You will be able to clear common faults of

the product with this document.

1.3 How to Obtain Product and Maintenance Information

To obtain product and maintenance information, visit http://app.huawei.com/tkb/.

You are recommended to install the ComPartner platform to download maintenance required

software tools and the phone version software. To obtain the ComPartner installation package,

log in to http://app.huawei.com/tkb/, and search for ComPartner. You will find the

installation package.

http://app.huawei.com/tkb/


H60-L04 Simplified Maintenance Manual 2 Product Overview



2

2 Product Overview

2.1 Appearance

Figure 2-1 H60-L04




3

2.2 Specifications

Table 2-1 lists the H60-L04 hardware specifications.

Table 2-1 H60-L04 hardware specifications

Module Specifications

Model Bar type

Display 5" Incell FHD, 16 M colors, 1920 x 1080 pixels, 445 PPI

Dimensions Designed dimensions:139.6 mm x 69.7 mm x 7.5 mm

Claimed dimensions: TBD

Weight (including

battery)

About 130 g

Technical standard Huawei Enterprise Technical Standard Q/DKBA 2159-2013




4


Working

frequency bands

LTE: B1/B3/B7/B20/B38

UMTS: B1/B8

GSM: B3/B2/B5/B8

CA: B3+B20 (20M+20M) inter-band

B7+B20 (20M+20M) inter-band /B38 (20M+20M) consecutive

intra-band

Data services GPRS/EDGE: Class 12

Band 1 supports Cat24 DC.

Band 8 supports HSPA+ 21 Mbit/s.

LTE: Category 6, 300 Mbit/s (downlink), 50 Mbit/s (uplink)

SIM card Standard 6-pin Micro SIM interface, not hot-plugging

Expansion slots Standard microSD, 3.5-mm headset interface, mobile high-definition

link (MHL) standard interface

Expansion storage Standard microSD: 64G

Processor Quad–core CPU HiSilicon K3V3: 4 x A15 (1.7 GHz) + 4 x A7 (1.2

GHz)

Storage ROM: 16 GB

RAM: 3 GB

Device control Power key, volume keys, charging indicator

GPS GPS/Glonass/AGPS

Temperature Charging temperature: –10°C to +45°C

Working temperature: 0°C to 35°C

Storage temperature: –20°C to +70°C

Battery Minimum value: 3000 mAh

Typical value: 3100 mAh Li-Polymer

2G network: standby times: TBD

Talk time: TBD

3G networks: standby times: TBD

Talk time: TBD

LTE networks: standby times: TBD

Talk time: TBD

Charging time: about 3 to 3.5 hours

Working humidity 5% to 95%

Cameras Rear camera: 13 MP

Front camera: 5 MP

Radio Built-in radio

Bluetooth Bluetooth 4.0, with BLE




5


Antenna Built-in antenna

WLAN 802.11 a/b/g/n, functioning as WLAN hotspots

USB USB2.0, 480 Mbit/s

Maximum

transmission

power

GSM850/GSM900: 32.5 dBm (power class 4)

GSM1800/1900: 29.5 dBm (power class 1)

WCDMA B1/B8: 23.5 dBm

LTE B1/B3/B41: 22 dBm (full RB)

Static sensitivity GSM850/GSM900: –109dBm

GSM1800/1900: –108 dBm

WCDMA B1/B8: –111 dBm

LTE B1/B3/B41: –97 dBm (full RB 10M)

Power supply Input: 100 V to 240 V, 50/60 Hz, 0.2 A

Output: 5 V, 2 A

Certificates CE certificate

Sensor Accelerator, proximity light sensor, ambient light sensor, compass,

hall sensor, and gyroscope

Table 2-2 lists the H60-L04 software specifications.

Table 2-2 H60-L04 software specifications

Software Description

Operating

system

Android 4.4

UI Emotion UI 2.3

Input method Baidu Input, Swype Input, Sogou Input

Browser Default Android 4.4 browser

Information Multimedia messages(Android 2.3-based)

Email POP3/IMAP/Exchange (Emotion UI 2.3-based)

Multimedia Audio encoding: MP3, MIDI, AMR-NB, AAC, AAC+, eAAC+,

AMR-WB, WMA2-9, RA, PCM, OGG, and FLAC

Audio format: mp3, mp4, 3gp, wma, ogg, amr, aac, flac, wav, ra, and midi

Video encoding: H.263, H.264, MPEG-4, RV7-10, Xvid, VP8, and

WMV9

Video format: 3gp, mp4, wmv, rm, rmvb, asf, and asf

Picture encoding: BMP, GIF, JPEG, and PNG

Picture format: png, gif, jpeg, and bmp




6

Software Description

Streaming

media

Audio encoding: AMR-NB, AAC, AAC+, eAAC+

Video coding: H.263, H.264, and MPEG-4

File format: MP4, 3GP

Ringtone *.mp3, *.wav, *.ogg, *.mid, *.amr

Upgrade the

phone.

HOTA

USB function 1. Supports charging.

2. Supports data connection.

3. Allows the phone to function as a network adapter.

Supports the USB OTG host function.

Language EMUI 2.3 globally universal version language

Camera

resolution

Rear

camera: 13

MP

Photo: maximum 4160 x 3120

Video: maximum 30 fps 1080p (1920x1080 pixels)

Front

camera: 5

MP

Photo: maximum 2592x1952

Video: maximum 30 fps 720p (1280x720 pixels)

H60-L04 Simplified Maintenance Manual 3 Exploded View



7

3 Exploded View

Figure 3-1 shows the exploded view of the H60-L04.

Figure 3-1 H60-L04 exploded view

Parts list:

H60-L04 Simplified Maintenance Manual 3 Exploded View



8

No. Name Quantity

1 Front cover assembly with the battery 1

2 Antenna support assembly 1

3 Rear camera module 1

4 Front camera module 1

5 Battery cover assembly 1

6 Main board 1

7 Screws 12

H60-L04 Simplified Maintenance Manual 4 Spare Parts



9

4 Spare Parts

4.1 Commonly Used Parts

Table 4-1 is for your reference only. It is subject to changes without notice. Obtain the latest

component information from the Huawei TCS. If you have any questions, contact the local

technical support.

Table 4-1 Commonly used parts

Material Name

Rear camera: 13 MP Material Name

Front camera: 5 MP Material Name

Battery




10

Material Name

Headset jack FPC Material Name

Side-key FPC Material Name

Flashlight FPC

Material Name

Speaker FPC Material Name

Receiver Material Name

Speaker




11

Material Name

Antenna support

assembly Material Name

Thermal conductivity

graphite sheet Material Name

Battery cover

assembly

Material Name

Front cover assembly without the

battery Material Name

Front cover assembly with the battery




12

Material Name

Data cable Material Name

Charger

4.2 How to Obtain Part Numbers

Part numbers (PNs) may change with time. To ensure the correctness of a PN, query the latest

BOM information from https://tcs.huawei.com before you apply for a part.

To check a PN, use the authorized ASC account to visit the BOM system.

To query the BOM information and part pictures in the BOM system:

Step 1 Log in to the BOM system.

Figure 4-1 Login dialog box

Step 2 Choose Basic Information > BOM Tree Info. Define the values for Product Line, Product

Type, Product Model, and Product Description.

The PNs are displayed in detail in the tree shape, as shown in Figure 4-2.

https://tcs.huawei.com/




13

Figure 4-2 PN tree

Step 3 Click the PN of the part to query. The system displays the picture of the part. Use the picture

to confirm whether the part is what you want.

Figure 4-3 Part picture

----End




14

To query the maintenance level for a part:

Step 4 Choose Basic Information > Material Info, enter the PN or description to query the

maintenance level, maintenance price, and product on which the part is used.

Figure 4-4 Entering the part code

Step 5 Click the PN.

The system displays the part picture.

Figure 4-5 Part picture

----End

H60-L04 Simplified Maintenance Manual 5 Software Upgrade



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5 Software Upgrade

5.1 Upgrade Preparation

Table 5-1 lists the items to be prepared for a software upgrade.

Table 5-1 Items to be prepared

Item Description Remarks

Upgrade

environment

Computer File copy

microSD card Available storage larger than 2 GB

Upgrade file UPDATE.APP Use the latest version for the upgrade.

Upgrade

method

Using the

microSD card

Normal upgrade

Forcible upgrade

Online upgrade When a Wi-Fi network is available, the phone

downloads the upgrade package and automatically

carries out the upgrade.

Before the upgrade, ensure that:

You have backed up important data on the phone because software upgrades will erase

all user data.

The power remaining of the battery is more than 15%. It is recommended that you

connect the phone to its power adapter for power supply and do not remove its battery

during the upgrade.

You have checked the phone software version because the software upgrade aims to

upgrade lower versions to higher versions only. Upgrades between phones used in

different countries and between different customized phone versions are not supported.

For details about how to distinguish between versions, see section 5.3 "How to

Distinguish Between Software Versions."

If a normal upgrade fails, use the forcible upgrade method to upgrade the phone again.

Prioritize the normal upgrade on phones that can be normally powered on. Forcible upgrades

may be risky because information loss may occur. Therefore, do not forcibly upgrade the

phone.




16

About backing up important user data:

To back up contact information, text messages, and third-party applications, insert a

microSD card, and use the backup software on the phone (All Backup, for example) to

back up all the information to the microSD card.

To back up photos, videos, music, and personal files, manually back them up to the

microSD card.

5.2 Checking the Software Version

To check a phone's software version, touch Settings > About phone > Build number.

Figure 5-1 Checking the software version

5.3 How to Distinguish Between Software Versions

5.3.1 Software Types

There are two types of software: factory-level software and version software.

Factory-level software: The software PN is 0502XXXX. This type of software is used in

normal production and on the phone whose flash memory is replaced or erased. You can

perform the CT or other functional tests on a phone after you load this software on the

phone. This software should not be delivered to customers. The software does not update

from time to time. You can download the software from ComPartner or the Huawei

Huawei Knowledge Base website.

Version software: The software PN is 0501XXXX. This software is used to upgrade the

firmware of the phone. The software updates from time to time. You can download the

latest version from ComPartner or the Huawei Huawei Knowledge Base website.




17

5.3.2 Software Naming Convention

1. Name: HUAWEI-H60-L04_Burnt software_0502XXXX [Board

software-HDH60L04M-HDH60L04M00-H60-L04 mobile phone software-program-China

General UL+G (K3V3+V7R2)-Loaded software]

This software is applicable to H60-L04. The software part number is 0502XXXX. There are

several folders in this software package: To load or clear the software, select the

HDH60L02M00A131.XML file (the file name differs with the actual software version). Files

in the other folders are configuration files and you do not need to select among them. Select

sec_fastboot1.img and sec_srb_fastboot2.img and in the Bootloaderimage folder.

Figure 5-2 Burnt software file folder

Figure 5-3 Folder bootloaderimage

2. Name: 0501XXXX phone software-H60-L04-HDH60L04M00A-H60-L04 upgrade

software-Program-China channel UL+G (K3V3+V7R2)

This software is applicable to H60-L04.

5.4 How to Obtain the Version Software

5.4.1 Method 1

Step 1 Log in to the ComPartner platform and click Download firmware.

Step 2 On the displayed dialog box, enter the IMEI of the phone, select Physical Number, and click

Query.

Alternatively, enter the PN of the version software, select Other Code and click Query.

批注 [w1]:

批注 [w2]:




18

Step 3 Double-click the desired software from the displayed query results.

Then, the tool automatically navigates to the Huawei Knowledge Base website.




19

Step 4 On the Knowledge Base website, click Download to download the desired software.

----End

5.4.2 Method 2

Log in to http://app.huawei.com/tkb/, select the desired phone model, enter the software

version, and search for and download the latest version software.

5.5 Using the microSD Card for Upgrade

5.5.1 Normal Upgrade

Step 1 Format the microSD card using FAT32.

Step 2 Create a dload folder in the microSD card's root directory.

Figure 5-4 dload folder

Step 3 Copy the upgrade file UPDATE.APP to the dload folder.

批注 [w3]: 有中文字





20

Step 4 Insert the microSD card into the phone and power on the phone. On the dialing screen, enter

*#*#2846579#*#*. Choose ProjectMenu > Upgrade > SD card upgrade and touch

Confirm.

Figure 5-5 Operations on the phone for a normal upgrade using the microSD card

The screen shows the upgrade progress, as shown in Figure 5-6.




21

Figure 5-6 Upgrade process

After the upgrade is complete, restart the phone and check whether the software version is

correct. See section 5.2 "Checking the Software Version" for details about how to query the

software version.

----End

5.5.2 Forcible Upgrade

If the phone cannot be powered on, forcibly upgrade the phone.

Press and hold the volume up and volume down keys and press the power key at the same

time. The phone then enters the microSD card forcible upgrade mode. The upgrade process

displayed on the screen is the same as the normal upgrade.

5.6 Troubleshooting Upgrade Failures

Table 5-2 Upgrade failures and solutions

Failure Solution

Failed to upgrade a

phone using a microSD

card

1. Check whether the upgrade file is correct.

2. Check whether the upgrade method is correct.

3. Check whether the microSD card functions properly.

4. Perform the upgrade again.

H60-L04 Simplified Maintenance Manual 6 Maintenance Tools



22

6 Maintenance Tools

Name: heat gun

Usage: heats components

Name: heat gun

Usage: heats components

Name: soldering iron

Usage: solders components

Name: DC power supply

Usage: supplies power

Name: soldering fixture

Usage: secures PCBAs

H60-L04 Simplified Maintenance Manual 6 Maintenance Tools



23

Name: lead-free tin solder wire

Usage: solders components

Name: digital multimeter

Usage: measures parameters during maintenance

Name: toolkit

Usage: assembles and disassembles terminals

Name: electric screwdriver

Usage: fastens and removes screws

Name: RF switch wrench

Usage: removes RF switches

Name: utility knife

Usage: disassembles the phone

Name: sucker

Usage: removes the battery cover

H60-L04 Simplified Maintenance Manual 7 Disassembly Procedure



24

7 Disassembly Procedure

3. Pull the battery cover out along its right side with a

sucker to gradually remove the battery cover.

2. Wear an ESD wrist strap.

1. Prepare disassembly tools: spudger, T5 screwdriver,

tweezers, sucker, and utility knife.




25

6. Disconnect the battery BTB, headset BTB, rear

camera BTB, and LCM BTB. Remove the rear camera.

Release the two main board fasteners at the two red

positions, and remove the main board.

5. Release antenna support fastener and remove the

antenna support.

4. Remove the 12 screws from the antenna support.




26

9. Remove the side-key FPC. Insert tweezers between

the front cover's fastener and the side-key FPC, pry the

FPC so as to disconnect the FPC from the fastener, and

pull upwards the FPC straight section so as to separate

the side-key FPC from the front cover.

Note: Do not reuse the side-key FPC.

8. Remove the headset FPC assembly.

Use tweezers to pry out the motor so as to separate the

FPC adhesive from the front cover, and then remove

the assembly. Do not reuse the removed headset FPC.

7. Insert a card under the battery, press the card to push

out the battery.

Note: Prevent any sharp object from touching the

battery, and do not reuse the removed battery again.




27

10. Remove the speaker FPC.

H60-L04 Simplified Maintenance Manual 8 Assembly Procedure



28

8 Assembly Procedure

3. Remove the adhesive release film from the REC area

of the front cover and use a vacuum sucking pen to

assemble the receiver, and press to tighten the receiver.

Note: The receiver pins face downwards.

2. Install the speaker FPC.

Attach the lower half of the FPC to the front cover,

with the two positioning rods at the lower part of the

front cover as the reference. Then, attach the upper half

of the speaker FPC to the front cover, with the two

positioning rods on the upper part of the front cover as

the reference. The speaker FPC must attached

smoothly, without bulges, damages, or tilts.

1. Ensure that the ESD wrist strap is properly

connected to the ground.




29

6. Install the main board to the front cover.

Press the top of the main board into its latches, place

down the main board, and then push the USB interface

at the bottom of the main board to its installation

position (aligning the main board's positioning holes

with the positioning rods on the front cover). Fasten the

front camera properly. Fasten the side-key FPC BTB

and LCM FPC BTB.

Note: When installing the main

board, prevent the side key and

LCM FPC from being pressed.

5. Install the speaker. Remove the release film from the

speaker area, install the speaker with a vacuum sucking

pen, and then remove the release film from the speaker

sealing foam.

Note: The speaker pins should face outwards.

4. Connect the side-key FPC.

Insert the auxiliary PET plate into the corresponding

position of the front cover and slantly insert in the

side-key FPC. Ensure that the FPC stiffening power is

lower than that of the plastic support ribs. Press and

hold the side-key FPC, and pull out the PET plate.

Finally, check the hand feel of the key.




30

9. Install the battery.

Attach the black Mylar to the battery BTB cable-out

side, and install the battery with the upper right of the

battery compartment as the positioning reference.

Remove the release paper from the FPC, fasten the

BTB, and make the FPC flat and properly attached.

8. Install the rear camera.

Vertically install the camera body and then fasten the

camera BTB.

7. Install the headset FPC.

Install the headset body, the motor, and the proximity sensor FPC in sequence.




31

11. Fasten the antenna support with 12 screws.

Note: After tightening the screws, check whether the

antenna support latches are properly fastened.

10. Install the antenna support from top to bottom

position, closing all its latches.




32

13. Use a screwdriver to fasten the two screws on the

phone.

12. Connect the fingerprint FPC, and install the battery

cover to the phone.

11. Obtain a BTB steel support, connect it to the main

board, and use a screwdriver to fasten the three screws.

12. Install the battery cover.

Connect the battery cover with the upper left corner of

the mobile phone as the positioning reference. Ensure

an even gap between the battery cover and front cover. Finally, use 900N power to press-fit the battery cover

for 10s.




33

14. Attach a tamper-resistant label on the screw at the lower right corner of the phone, and use

a cotton swab to press it. Obtain the decoration, remove the release paper inside the decoration,

and install the decoration at the bottom of the phone.

H60-L04 Simplified Maintenance Manual 9 FAQs



34

9 FAQs

9.1 My phone sometimes stops responding or restarts after running for a period of time. What can I do?

Reason: Smartphones incorporate a complex operating system, just as a computer. Seldom

breakdowns or restarts may occur because of application running errors or compatibility

issues with third-party applications.

Solution: Upgrade the phone to the latest version software.

9.2 I forgot the screen lock password. What can I do?

Solution: Forcibly unlock the phone, which will erase all user information. After the phone is

powered off, press and hold the power and volume up keys. When the startup screen is

displayed, wait for 3s, and then release the power key. After the recovery screen (shown in

Figure 9-1) is displayed, release the volume up key. Press the volume up key to scroll to wipe

data/factory reset and press the power key for confirmation. Then scroll to Yes-delete all

user data and press the power key.

Selecting Yes-delete all user data will delete all user information.




35

Figure 9-1 Recovery screen

Figure 9-2 Scrolling to Yes-delete all user data




36

9.3 My phone responds slowly after it runs for a period of time. What can I do?

Possible reasons:

Too many applications are installed on the phone, and the phone does not have enough

available space.

The phone suffers from virus attacks.

Other issues.

Solution: Restore the phone to its factory settings.

To restore the phone to its factory settings, choose Settings > Backup & reset > Factory

data reset > Reset phone.

Figure 9-3 Operations on the phone for restoring it to its factory settings




37

9.4 How do I check my phone's Wi-Fi/Bluetooth/SN information?

To check the Wi-Fi and Bluetooth addresses:

Enable Bluetooth and Wi-Fi on your phone. Choose Settings > About phone > Status.

To check the phone IMEI and SN:

On the dialing screen, enter *#*#2846579#*#* to access engineering mode and choose

ProjectMenu > Veneer information query > Other query.

Figure 9-4 Wi-Fi and Bluetooth addresses




38

Figure 9-5 IMEI and SN

H60-L04 Simplified Maintenance Manual 10 Troubleshooting



39

10 Troubleshooting

Before you repair a L10, restore it to its factory settings to ensure that the failure is not caused

by environmental factors or incorrect functional settings. Before the restoration, remember to

back up important data. Faulty PCBAs removed from the L10 phones at common service

centers must be kept clean and complete for advanced service centers to repair them properly.

10.1 Power-on Failure

Symptom

After your install the battery and press and hold the power key, the phone fails to start and

display the Home screen.

Solution

Check whether the problem is caused by a battery fault.

1. Check whether the battery is deformed and properly fits in the battery compartment.

2. Check whether the contacts on the battery are smudged or rusted. If yes, clean the

contacts.

3. Use the multimeter to test the ground impedance of the battery's BSI.

4. The normal impedance is 10 kohms. If the value on the multimeter deviates greatly and

the voltage between the battery's positive and negative terminals is 0 V, charge the

battery for about 30 minutes. Install the charged battery into the phone and power on the

phone. If the phone fails to start, the power-on failure is caused by the battery fault.

Replace the faulty battery for free if the phone is still in its warranty period.




40

Figure 10-1 Troubleshooting power-on failures

Is the battery voltage larger than or equal

to 3.7 V?

Arethe contacts on

the battery and in the battery compartment

deformed or smudged?

Power-on failure

N

Y

Clean the contactsY

Confirm the fault cause

N

Replace the battery

Figure 10-2 Troubleshooting battery failures

Is the battery BSI’s ground impedance is

10 kohms?

Is the battery voltage larger than or

equal to 3.7 V after the battery is charged for 30

minutes?

Battery failure

N

Y

Confirm the conclusion that the battery is properly

functioning

Y

Confirm the battery fault cause

N

Confirm the battery fault cause




41

Remove the battery from the phone and connect the phone to a DC power supply. Power on

the phone and check the current on the phone.

Figure 10-3 Connecting the phone to a DC power supply

DC power supply

Output 3.7 V

+

—

Phone+

—

No current: Check whether the power key functions properly. Change the PCBA if the

failure is not caused by the power key.

Weak current (25–80 mA): Forcibly upgrade the phone software using a microSD card or

USB cable. If the upgrade fails, replace the PCBA.

Excessive current (or high current): If the current is above 800 mA, replace the PCBA.

Troubleshooting Process Troubleshooting process for no current power-on failures

Figure 10-4 Troubleshooting no current power-on failures

No current power-

on failure

Is the battery connector

J1401 malfunctioning?

Replace

J1401

Is the power key FPC

malfunctioning?

Replace

the power

key PFC

Replace

the PCBA

Yes

Yes

No

No




42

Figure 10-5 Battery interface circuit diagram

Figure 10-6 Critical parts on the PCBA for power-on failures

Troubleshooting process for weak current power-on failures




43

Figure 10-7 Troubleshooting weak current power-on failures

Weak current

power-on failure

Is the issue addressed after

the phone software is forcibly

upgraded?

End

Replace the PCBA

Y

N

Troubleshooting process for excessive current power-on failures: Replace the PCBA

directly.

10.2 Restarts and Screen Freezing

Symptom After you press and hold the power key, the phone repeatedly restarts and cannot display

the Home screen.

After you press and hold the power key, the phone freezes at the Huawei logo screen and

cannot display the Home screen.

Solution

Check the power-on current of the phone. If the current is between 80–350 mA, forcibly

upgrade the phone. If the current exceeds 500 mA, replace the PCBA.




44

Troubleshooting Process

Figure 10-8 Troubleshooting repeat restarts or the screen freezing problem

Repeat restarts or screen freezing

Is the power on current larger

than 500 mA?

Replace the PCBA

Is the issue addressed after

the phone softwareis forcibly

upgraded?

End

Replace the PCBA

Y

N

Y

N

10.3 Overheat and Short Standby Time

Symptom

The phone gets overheated after startup, and the standby time is short.

Solution Test the VBAT's ground impedance. If the impedance is less than 5 kohms, the problem

is probably caused by the PCBA.

Test the power-off current. If the current exceeds 1 mA, the problem is caused by the

PCBA.

Test the power-on and standby currents. If both currents exceed the normal values, the

problem is probably caused by the PCBA.

If the preceding items are proved normal, the problem is caused by the battery. Replace the

battery.




45

10.4 Charging Failure

Symptom

The phone fails to be charged using the USB cable.

Solution

Charging failures commonly include two types:

There is no charging icon on the screen.

There is the charging icon on the screen.

Without charging icon: Check whether the USB connector is in good condition. If not, replace

the USB cable. If yes, replace the PCBA.

With charging icon: Test whether the BSI's ground impedance is 10 kohms and whether the

voltage between the battery's positive and negative terminals is 0 V. If the voltage is 0 V while

the impedance is much larger or smaller than 10 kohms, the battery is faulty. Replace the

battery and check whether the phone can be properly charged. If the problem persists, replace

the PCBA.

Troubleshooting Process

Figure 10-9 Troubleshooting charging failures

Charging failure

Is the USB port smudged, poorly soldered,

or damaged?

Replace the USB port FPC

Is the issue addressed after you replace

the battery?

Replace the PCBA

N

Y

N

Y

Replace the PCBA




46

10.5 No Ringtone

Figure 10-10 Troubleshooting ringtone failures

No ringtone

Is the speaker properly

functioning?

N

Replace the speaker

Y

Is the speaker signal circuit normal?

N Check whether

J2104/J2105 is properly connected

Y

Resolder or replace J2100/J2101

10.6 Receiver Failure

Figure 10-11 Troubleshooting receiver failures

Receiver failure

Is the receiver functional?

NReplace thereceiver

Y

Are related signal circuits functional?

N

Exclude circuit faults

Y

Replace the PCBA




47

10.7 Microphone Failure

Figure 10-12 Troubleshooting microphone failures

Microphone failure

Is the microphonefunctional?

N

Replace the microphone

Y

Are the related signalcircuits functional?

NExclude the microphone

related signalcircuit faults

Y

Replace the PCBA




48

10.8 Weak or No Reception

Figure 10-13 Troubleshooting reception failures

No

reception/Weak

reception

Is the SIM card

malfunctioning?

Replace the

SIM card with a

standard one

Is the antenna support

malfunctional?

Replace the

antenna

support

Replace the

PCBA

Yes

Yes

No

No




49

10.9 SIM Card Detection Failure

Figure 10-14 Troubleshooting SIM card detection failures

SIM card detection failure

Is the SIM card holder properly functioning?

N Re-solder or replace the SIM

card holder J2802

Y

Is the SIM card power supply pin SIM_VCC properly functioning?

N

Replace the PCBA

Y

Are signal circuits properly functioning?

N

Re-solder or replace damaged

parts

Y

Replace the PCBA

10.10 Camera Failure

To troubleshoot a camera failure: use the MMI test to identify whether it is a front camera

failure or rear camera failure.

Currently, the camera components are connected to the PCBA using BTB connectors. The

front and rear cameras share a main cable. If only one camera is abnormal, it is considered as

a single unit fault, replace the faulty camera and check whether the fault is cleared.

If both the two cameras are malfunctioning, check whether the MMI test is able to detect the

cameras and whether the power supply to the cameras is normal.

If neither of the cameras is detected or the power supply is abnormal, replace the PCBA

directly.




50

10.11 Touchscreen Failure

When a touchscreen failure occurs, the LCD display is normal but you cannot unlock the

screen.

The TP assembly has a great independence and multiplex power supply and communication

interfaces with other circuits. Therefore, you can replace the front cover to identify whether

the failure is a touchscreen failure or a PCBA-related circuit failure.

H60-L04 Simplified Maintenance Manual 11 Quality Inspection Procedure and Methods



51

11 Quality Inspection Procedure and Methods

After the maintenance, check the phone's basic functions. Perform the quality inspection

according to the flowchart in section 11.1 "Inspection Flowchart" to ensure that there are no

potential faults. So far, the MMI test, current test, charging test, and MT are used for the

quality inspection.

11.1 Inspection Flowchart

Figure 11-1 Inspection flowchart

Maintenance

MMI test

Battery

functionality testCurrent test

MT

Charging test

End

Table 11-1 Inspection description

Item Description Reference Value

Battery test Test the battery voltage using a multimeter. 0 V < X < 4.5 V

Connect the phone to a power adapter, charge the

phone for 15 minutes, and test the voltage rise of the

battery. (Ensure that the battery voltage is lower than

3.5 V before charging it.)

> 0.5 V

Current test Test the power-off current. 0 mA

Test the power-on peak current. < 2500 mA




52

Item Description Reference Value

Test the standby current. < 10 mA

Charging test Connect the phone to a power adapter, charge the

phone for 15 minutes, and check the power remaining

incremental of the battery. (Ensure that the power

remaining of the battery is lower than 50% before

charging it.)

> 3%

MMI test Test the functions of the peripheral parts, such as the

audio and display components.

All pass

MT Test the phone's reception on 2G and 3G networks. All pass

11.2 Inspection Tools

Table 11-2 Inspection tools

Tool Function Picture

Multimeter

Used for the battery test

Tests the battery voltage.

DC power supply

Used for the current test

Tests the phone current.

Connection cables

Used for the current test

Connect the DC power supply

to the phone.

SIM card

Used for the MMI test

Tests the SIM card function

of the phone.




53

Tool Function Picture

microSD card


Tests the microSD card

function of the phone.

Headset


Tests the headset and FM

functions of the phone.

Charger

Used for the charging test and

battery test

Charges the phone.

USB cable

Used for the charging test and

battery test

Charges the phone.

WILLTEK/CMU200

Used for the MT

Tests the phone's reception

metric.

Antenna coupler

Used for the MT


metric.

Couples phone signals.

Shielding box

Used for the MT


metric.

Shields the phone from

interference signals.




54

11.3 Instruction Instructions

11.3.1 Battery Test

Test the voltage between the positive and negative terminals of the battery. If the voltage

is 0 V, the battery is damaged.

Test the impedance between the battery's BSI and negative terminal using the multimeter.

If the impedance does not ranges from 7 kohms to 10 kohms, the battery is damaged.

After the maintenance, charge the phone till the power remaining of the battery reaches

50% before sending it for quality inspection.

Figure 11-2 Test point

11.3.2 Current Test

Testing the Power-off Current

Remove the battery from the phone, connect the phone to the DC power supply, power off the

phone, and check the current. If the reading on the power supply is not 0 mA, current leakage

occurs.

Testing the Power-on Peak Current

Remove the battery from the phone, connect the phone to the DC power supply, power on the

phone, and check the peak current. If the peak value is within 500 mA to 600 mA, the phone

is normal. Otherwise, the phone is faulty.

Testing the Standby Current

Remove the battery from the phone, connect the phone to the DC power supply, and power on

the phone. When the phone display the Home screen, press the power key to turn off the

screen and check the phone's standby current. If the reading on the power supply exceeds 10

mA, current leakage occurs.




55

Figure 11-3 Test point

11.3.3 Charging Test

Step 1 Power on the phone. Choose Settings > About phone > Status > Battery level.

Step 2 Charge the phone using the power adapter for 10 minutes and check the battery level.

Step 3 If the battery level does not increase, a charging failure occurs.

Figure 11-4 Operations on the phone

----End

11.3.4 MMI Test

After maintenance, check the functions of the phone through the MMI test.

To enter MMI test mode, insert a microSD card and a SIM card into the phone, power on the

phone, and on the dialing screen, enter *#2846#. Press the volume down key to start the test.

To skip a test item, press the power key. To proceed to the next test item, press the volume

down key.




56

Figure 11-5 MMI test preparation

Table 11-3 MMI test instructions

No. Task Step Content Test Method and Description

1 MMI test 1

Enter *#2846# to drive the phone into MMI test

mode. Press the volume down key to start the test.




57


2

Battery

informati

on check 2

Press the volume down key to start checking the

battery information. If the screen displays a message

Test failed.Error Code:xxx, the battery test fails. In

this case, press the volume down key to proceed to the

next test item.

If the battery test is passed, the screen will not display

any message and the phone automatically proceeds to

the next test item.

3

Testing

the SD

card

3

The phone detects the inserted microSD card. The

phone automatically proceeds to the next test item if

the microSD card is detected. If the microSD card

cannot be detected, the failure message is displayed

on the screen.

批注 [w4]: 里面有中文




58


4 Key test 4

Press or touch all the keys. When a key is pressed or

touched, the color of the corresponding key displayed

on the screen will change. After all keys are tested,

press the volume down key to start the next test.

5 Infrared

test 5

Navigate to the test screen. Align the infrared detector

of the test phone with that of a sample phone (on a

fixture), and then touch Start. The system software

automatically completes the test and outputs the test

result. If the phone passes this test item, it will

automatically proceeds to the next test item. If a

message in red is displayed after a while (not more

than 15s), it indicates that the test fails. Then, try it for

two more times. If three consecutive test trials fail,

mark the phone as a defective product and place it

separately.

6

Automat

ic

touchscr

een color

test

6

Press the volume down key. Then, the screen displays

the color; in addition, the color is displayed on the

LCD with the same color value as the mobile phone

theme color (for example, black, as shown in figure).

It indicates that the test is successful. In this case,

press the volume down key to proceed to the next test

item; otherwise, press the power key to forcibly fail

the test.

If any exception occurs during the test, the screen

displays Test failed. Error Code:xxx. It indicates

that the test fails and mark the mobile phone as a

defective one.




59


7 LCD test 7

Navigate to the LCD test screen. Repeatedly press the

volume down key at an interval larger than 1.5s so

that the LCD displays five colored pictures (white,

black, red, green, and blue) in sequence.

If the LCD display is normal in each background, the

test is passed. Otherwise, the test fails; press the

power key to forcibly fail the test.

If the phone passes the test, press the volume down

key to test the next item.

8

LCD

backlight

test 8

1. When testing the backlight, the backlight will

become brighter step by step. You need to manually

check whether the phone passes the test.

2. If the phone passes the test, press the volume down

key to test the next item.

9

Testing

the

touchscr

een

9

Use one of your fingers to start drawing from the top

of the screen. The test is complete until a rectangle

frame is displayed as shown in the left figure. Press

the volume down key to test the next item. If there is

no response or failure to display the continuous line,

mark the phone as a defective product.




60


10 Indicator

test 10

Verify that the color indicator beside the earpiece

repeatedly turns red and then green at a 1.5s interval,

the indicator light is round, and its brightness is even.

Then, press the volume down key to enter next test

item.

11

Rear

camera

function

test

11

Take the following operations to test the rear camera:

1. Face the rear camera with the color plate, and

check whether the image displayed on the viewfinder

is normal without water ripples, painting effect, or

color difference. Keep the test phone about 30 cm

from the target object.

2. Test the auto-focus function of the camera. The test

screen displays Press Touchscreen to test focus.

Keep the phone about 10 cm from the focus area of

the color card, and touch the TP to start the test (the

screen slightly shakes). Check whether the imaging

effects are clear. If the imaging effects are unclear,

mark the phone as a defective product. If the phone

passes the test, press the volume down key to test the

next item.

12

Front

camera

function

test

12

Manually check the pictures taken by the front

camera. Check whether the imaging effects are clear,

with no obvious fuzzy pixels or image distortion. If

yes, the phone passes the test. In this case, attach the

TP protective film back. Press the volume down key

to proceed to the next test item.

Note: During the camera test, keep the mobile phone

at any position in front of your face allowing you to

have a clear view of the camera preview. After the

test is complete, attach the TP protective film back to

the mobile phone.

批注 [w5]: 需要替换为英文截

图




61


13 Flashligh

t test 13

Touch the red button flashlight 1 test. The red button

will turn green. Check whether the flashlight is on.

Touch the button again and check whether the red

flashlight is off. Use the same method to perform

flashlight 2 test. Touch the two buttons again and

check whether the flashlight is on. If the flashlight is

on, it indicates that the phone passes the test. Press the

volume down key to proceed to the next test item. Do

not touch the two buttons at the same time.

14 Approac

h test 14

Place your hand 3 cm to 4 cm high above the

approach sensor area at the upper left corner of the

mobile phone. If the screen displays a calling diagram

pattern, the phone passes the test; otherwise, the test

fails. After the test is passed, the next test item

automatically proceeds.

15 Ambient

light test 15

Rotate the phone once or twice to make the mobile

phone sense light changes. The number displayed on

the screen will change. The phone software

automatically judges whether the test is successful. If

the test is passed, the phone proceeds to the next test

automatically. If the test fails even after the phone is

rotated for more than two times, the phone is marked

as a defective product.




62


16 Vibrator

test 16

Check whether the phone vibrator vibrates at a

specific frequency. If not, mark the phone as a

defective product. If the phone passes the test, press

the volume down key to test the next item. If there is

no vibration or bad/weak vibration (with noise), mark

it as a defective product, and further inspect it

according to quality criteria.

17

Testing

the

speaker

17

Check that the speaker displays audio clearly without

issues of weak sound, noise, or distorted sound.

If the phone passes the test, press the volume down

key to test the next item. Place the phone 15 cm away

from your ear and do not block the speaker.

18 Receiver

test 18

If the receiver delivers soft and clear sound, the test

item passes.

Press the volume down key to start the next test.




63


19

Modem

audio

test

19

1. Navigate to the modem audio loopback test screen.

The phone automatically plays audios and sound is

emitted from the earpiece.

2. After the test is successful, press the volume down

key to enter the next test. If no sound is output from

the earpiece, the test fails; in this case, forcibly fail

the test.

20

Mobile

phone

loopback

test

(primary

microph

one)

20

Touch Record on the screen, speak into the primary

microphone normally, and then touch Play on the

screen. If you can clearly hear what you said from the

speaker, the phone passes the test. If the speaker is

silent or barely audible, plays echoes, or howls, mark

the phone as a defective product. If the test is

successful, press the volume down key to test the next

item.

21

Mobile

phone

loopback

test

(seconda

ry

microph

one)

21

Touch Record on the screen, speak into the primary

microphone normally, and then touch Play on the

screen. If you can clearly hear what you said from the

speaker, the phone passes the test. If the speaker is

silent or barely audible, plays echoes, or howls, mark

the phone as a defective product. If the test is

successful, press the volume down key to test the next

item.




64


22

Headset

loopback

test

22

The phone prompts you to insert the headset. Insert

the headset, touch Record to start recording, say

something to the phone with normal voice, and touch

Play. Then, the audio signals are output through the

headset. If you hear clear sound from the headset, the

test is passed. Press the volume down key to proceed

to the next test item.

23 FM test 23

The phone searches for channels fixed at three bands

(8800, 9800, and10700). Tab Next Channel to switch

over a band. This item passes the test only if

broadcast signals can be received from all the three

bands. Press the volume down key to test the next

item.

24

Headset

wire

control

test

24

Since the headset has been connected in the

voice loopback test, the in icon is green. Press

the headset button; then, the button icon on the

screen turns green. Disconnect the headset; the

out icon turns green. If all tested icons turn

green, the test is passed. Press the volume down

key to start the next test.




65


25 HDMI

test 25

The mobile phone automatically plays audios and

sound is emitted from the speaker. Listen to the sound

carefully to check for noise, no sound, or weak sound.

If the sound is normal, insert the USB transfer cable

connecting the HD TV for testing the audio and video

signals. The TV screen display and the phone screen

display are the same and both repeatedly play audios.

Verify that both TV images and sound are normal,

remove the USB transfer cable. Press the volume

down key to proceed to the next test item.

26 OTG test 26

The mobile phone displays the message Please insert

USB OTG line. Insert the OTG line connecting the

USB flash drive for testing the OTG function. When

inserting the line, check whether the phone indicator

turns on. If the phone indicator turns on, mark the

phone as a defective product. Check whether the USB

flash drive indicator turns on. If the indicator blinks

for more than 1s, the phone automatically proceeds to

the next test item; otherwise, the test fails and mark

the phone as a defective product.

27 Bluetoot

h test 27

Navigate to the Bluetooth test screen. The phone

automatically searches for Bluetooth. If it searches

out two or more Bluetooth addresses, the phone

passes the test. Press the volume down key to proceed

to the next test item. If a message is displayed notifying

of a search failure and asking whether to perform a

second search, select OK and perform a second search.

If the second search fails, the phone fails the test.




66


28

Gravity

sensor

test

28

Fix the phone onto the dedicated test fixture and

retain it for more than 3s. If this test is passed, the

next test item then automatically proceeds.

Periodically check whether the cloth on the test

fixture is broken. If it is broken, replace it in time. If

the test fails, do not change the angle between the

phone and the fixture reference surface to forcibly

make the phone pass the test.

29

TP

automati

c test

29

The program automatically performs the TP test. If

the phone passes the test, the phone displays no

message and directly proceeds to the next test item. If

the test fails, the screen displays an error message.

30

Hall

sensor

test

30

1. Place the phone on a fixture. Then, the software

automatically checks the value read by the sensor.

2. Operate the fixture accordingly to simulate the

magnet moving near and far away. If the sensor can

be identified during the process, the screen displays

LeftN:Pass and the test is passed. After the Hall

electrodes N and S both pass the test, the phone

proceeds to the next test item. If the hall test screen

persists, the test is not successful. In this case, try

more tests or press the power key to forcibly fail the

test.




67


31 Gyrosco

pe test 31

Enter the gyroscope test screen and retain it for more

than 1s. If this test is passed, the phone automatically

proceeds to the next test item. If the test fails, mark

the phone as a defective product.

32 Compass

test 32

The program automatically performs the compass test.

If the phone passes the test, the phone displays no

message and directly proceeds to the next test item. If

the test fails, the screen displays an error message.

33 Wi-Fi

test 33

After the Wi-Fi test is initiated, the phone

automatically starts searching for SSID lists. It passes

the test after finding one or more sample SSID lists.

Press the volume down key to proceed to the next test

item. If the test fails, the screen will display an error

message.




68


34

Testing

the SIM

card

34

The phone automatically checks for the SIM card. If

the phone passes the test, press the volume down key

to proceed to the next test item. If no SIM card is

detected, an error message is displayed No SIM card

available.

35 Test

result 35

After all MMI test items are complete and the screen

displays the desired result, touch Confirm. The phone

will restarts and displays the startup screen. Press the

power key to power off the phone, remove the SIM

card and the SD card, and place them into a holder.

The mobile phone is then transferred to the next

station.

If any items failed the tests, the failed test items will

be displayed. Fill a defective product identification

card and place the defect product in the area where

defective products are stored.

11.3.5 MT

Insert a 3G SIM card into the phone, power on the phone, place the phone into the shielding

box, and run the test software. Before the test, select the 2G and 3G bands. If the test fails, the

RF metric of the phone is nonconforming, and the RF components may be faulty.




69

Figure 11-6 MT scene

How to understand the MT script:

Test Equipment: The test equipment is AERROFLEX4400 of version 15.21.001.

RF connection: indicates the RF connection information. The antenna coupler is Willtek

4916, and the shielding box model is 4921.

Position: The phone's coordinate on the antenna coupler is 5B.

Coupling Loss Values (Rx, Tx): The transmission and reception bands are WCDMA

Band I (3G) and GSM 900/1800 MHz (2G).

TX–Power: indicates the transmit power of the phone. If the result is FAIL, the antenna

or PA module may be damaged.

RX–Level: indicates the voltage level of the signals received by the phone. If the result is

FAIL, the antenna or RF intermediate frequency IC may be damaged.

RBER: short for residual bit error rate; indicates the ratio of the received wrong bits to

the sent bits. It is an important receive quality metric in digital transmission, one of

several used to quantify the accuracy of the received data.




70

Figure 11-7 MT script

Documents

Huawei H60-L04 Simplified Maintenance ManualH60-L04 Simplified Maintenance Manual Issue 1.0 Date 2014-09-04 HUAWEI TECHNOLOGIES CO., LTD