Tcl Alcatel pixi4-7 4g bell Technical manual

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 1/41

Pixi4-7 4G BELL

9015B

Note: this manual can be modified without prior notice on the characteristics of described

equipment. Please download from Support website for the latest versions.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 2/41

1.0 2-Sep-2016 Draft creation Peter Hanson

Rev.

Date

Modification description

Prepared By

Checked By

Approved By

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 3/41

Content

1Level 2E repair process............................................................................................4

2Warranty Check and Visual Inspection ...................................................................4

2.1 Warranty confirmation of L1.....................................................................................4

2.2 Visual mechanical check..........................................................................................5

2.3 Pretest........................................................................................................................5

3Battery........................................................................................................................6

3.1 Battery information...................................................................................................6

3.2 WARNING OF BATTERY disassembling..................................................................7

4Software download ...................................................................................................8

5Disassembly and assembly 9003X..........................................................................8

5.1 ESD Safety.................................................................................................................8

5.2 Disassembly tool.......................................................................................................8

5.3 Disassembly process................................................................................................9

5.4 Disassembly Notice: ...............................................................................................15

5.5 Reassembly process...............................................................................................15

5.6 Disassembly process evaluation...........................................................................16

6Disassembly Complete...........................................................................................16

7Level 2 repair...........................................................................................................18

8L2 Enhance repair...................................................................................................26

8.1 Repair notification...................................................................................................26

8.2 Position of L2 enhance components on PCBA ....................................................27

8.3 Trouble shooting for common failures..................................................................28

8.4 L2 enhance spare part list......................................................................................38

9PCBA exchange.......................................................................................................40

10 NOTE for defective PCBAs.....................................................................................40

11 Functional test.........................................................................................................41

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 4/41

1 Level 2E repair process

Please refer to <L2E repair process> in support (CSS/RSH) website for details.

2 Warranty Check and Visual Inspection

2.1 Warranty confirmation of L1

IMEI sticker check:

1) Power on the handset, enter ”Settings” -> “About tablet” -> “Status” -> “IMEI information”

2) Input *#06# on the dial mode.

3) There two IMEI sticker positions on the device:

Position 1: in the back casing

Position 2: in the SD slot cover

If the IMEI sticker in the back casing is not lost:

We should make sure that the IMEI number MUST be the same with the one on the IMEI sticker; if

not, it’s out of warranty policy.

Humidity sensitive label

If humidity sensitive label is not good, the cell phone will be considered as out of guarantee.

1). Liquid was detected by humidity sensitive label.

2). Position of humidity sensitive sticker.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 5/41

2.2 Visual mechanical check

Please refer to <Visual mechanical check> in support (CSS/RSH) website for details.

2.3 Pretest

1) Check that the SIM card and SD card are set correctly.

2) Power on the tablet.

3) If the tablet asks to input NCK code, this means it is SIM locked and can only be worked with

dedicated SIM card. Use the correct SIM card.

4) Enter the phone code if necessary.

5) If power on, test step by step with the auto test code or using Smart Diagnosis Tool to proceed

with the test:

a) Using auto test code:

Open “Calculator” application, and input “0x0-0+=” to enter MMI test mode, and then you

will see the interface displaying the SW version. Select “Auto” to start the auto test, or

select “MANU” to do the MMI test manually.

If one of the tests failed during “Auto” test mode, it will display “Failed: xxx, Press ‘Next’ to go

on test; Press ‘RETEST’ to retest this item; Press ‘END’ to Power off.”

For detail instruction of each test item, please refer to <MMI TEST> video in

support (CSS/RSH) website for details.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 6/41

b) Using Smart Diagnosis Tool to proceed with the test:For detail instruction of test

with Smart Diagnosis Tool, please refer to < Smart Diagnosis Manual > in

support (CSS/RSH) website.

3Battery

3.1 Battery information

1) Battery picture

2) Battery feature

Model Element Capacity

Battery Li Lithium 3240mAh

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 7/41

3) Battery life

The bellowing table shows the nominal battery life respectively in standby and talking

mode. These typical values are expressed in normal temperature with battery initially full

charged and under good ratio coverage. Battery range depends on the network

characteristics, the ambient temperature and particularly on movement.

Pixi 4-7 4G

Power pack

9015B

Standby time (hours) Talking time（depend on different

network）

Power pack

Lithium 1000hours 5Hours-3G

10Hours-2G

* Pmin: minimum transmission power

** DTX: no transmission during period of silence

4) Battery charge time

For a normally discharged battery which has not been stored for long time, the

charge time listed as below table.

Battery type (RF standby

mode)

Typical Charge

Soft pack within 3.5hours

Note:

If the battery is new, charge it before use. Battery icon will appear after charging

a short time.

If the battery is deeply discharged, battery icon will appear after charging several

minutes and accompany with a slight sound.

3.2 WARNING OF BATTERY disassembling

Potential for fire or burning. Do not puncture, crush, or heat the battery. Strictly avoid using

sharp tool to pry up battery.

Fire extinguisher is needed for emergency.

The battery cannot be reused when you disassemble it.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 8/41

4 Software download

It is authorized to download software for the handset which needs to be updated. This

downloading tool is called “Sugar MTK_SP V3.3.5”. Handset Software can be

downloaded from TS website via it. Thus internet access is necessary.

TS Website: https://css.tclmobile.cn/.

Please refer to <instructions of SUGAR Tool> video in support (CSS/RSH) website.

5 Disassembly and assembly 9003X

5.1 ESD Safety

Please wear static loop or static glove

5.2 Disassembly tool

You may use the following tools during the disassembly and reassembly procedure:

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 9/41

5.3 Disassembly process

The steps of disassembly 9015B are as below.

Step1: Take off the back cover by using plastic flake. Disconnect the battery with tweezers.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 10/41

Step2: Take off the 14 rews on the teblet:

Step3: Disconnect the side key, main camera, front camera, speaker and FPCs connector.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 11/41

Step4: Pry up the PCBA with the plastic flake.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 12/41

Step 5: Remove MIC rubber, Antenna and sub board.

Step6: Remove the main LCD with pry bar.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 13/41

Step 7 Disassemble complete.

Note: All the components listed below are spare parts for L2.

All the connectors could be disassembled by hot wind gun.

(hot wind gun temperature: 330℃, Air Level: 2~3, Height: around 10mm, Time: less than 60s)

Please use high temperature protect film to protect surrounding elements when using hot wind

gun.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 14/41

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 15/41

5.4 Disassembly Notice:

1). Receiver is easily to be damaged during disassembly process. Thus please do not

disassemble receiver unless it is necessary.

2). About battery disassemble notice:

The battery can’t be reused when you disassemble it.

Improper operation on battery will cause high risk for fire or burning. Thus please follow

up the battery disassembly guidance strictly and pay high attention to the WARNING

part. Do not disassemble battery unless it is necessary.

3). Put all the spare parts on right position (don’t let all the spare parts mixed and put on the

clean place to avoid vitiated or stained for each spare part) after disassembly.

5.5 Reassembly process

Please make reference to the disassembly process for assembly reverse an order of the disassembly

steps.

Attention:

When assembling Furnished frame, make sure the TP FPC and LCD FPC connected firstly.

Before assembling furnished back cover, please check whether there’s any deformation or damage

for the buckles; if yes, replace it with a new furnished back cover.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 16/41

5.6 Disassembly process evaluation

We list the Pixi4-7 3G parts disassembly time, technique levels and disassembly methods as below, for

technique levels, Class 1 signifies easy to disassembly, Class 2 signifies normal to disassembly and Class

3 signifies hard to disassembly.

Spare part Time for

disassembly Jigs for

disassembly Difficulty Class Remark

Furnished battery cover 6s Plastic flake Class 2

Screws 9s Screwdriver Class 1

Main PCBA 15s

Tweezers

Plastic Flake

Class 2

Main camera 2s

Screwdriver

Plastic Flake

Class 1

Front Camera 2s Plastic Flake Class 1

Receiver 2s Tweezers Class 1

Speaker 5s

Tweezers+

soldering iron

Class 2

FPCs 4s Tweezers Class 1

MIC rubber 2s Tweezers Class 1

Back camera lens 4s Pry bar Class 1

Main LCD 2s Pry bar Class 1

6 Disassembly Complete

Below table lists 9003A/9003X/VF1100 L2 spare parts, which is just for reference.

NOTE:The SPL here is just for reference. Actual Spare Part List depends on the CU reference. Please

check with RSH webshop or Forlog system for the spare part list of specific CU.

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 17/41

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 18/41

7 Level 2 repair

This chapter describes the Level 2 repair that can be done without any diagnostic equipment.

Charging failure

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 19/41

Replace battery

N

Check whether the voltage of the

battery is 0V and Charge for 15

minutes, check whether battery is

good.

Check whether battery

connector is good

Check whether USB

connector is normal Reweld or replace

USB connector

replace battery

connector

Y

Charging failure

Y

Replace PCBA

Display failure

L2E Repair Document TCLCommunication Ltd.

Rev.

9015B Level 2E Repair Document

Page

1.0 20/41

Check whether the connection

between LCD andLCD

connector is good

N

Check whether LCD connector is

normal

Y

Check whether LCD is

normal（interchange

method）

N

Reassemble LCD

Reweld or replace LCD

connector

Change LCD

Y

Replace PCBA

Display failure

Y

Touch function failure

TCL alcatel Pixi4-7 4G BELL Technical manual

Popular Cell Phone manuals by other brands