TCL Alcatel Pixi4-7 TMO Technical manual

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
1/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
Pixi4-7 TMO
9015W
Note: this manual is non-contractual and TCL Communication Ltd. can modify it without prior
notice on the characteristics of described equipments.

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
2/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
1.0
2016-03-28
Draft creation
peter
Keira Xie
Rev.
Date
Modification description
Prepared By
Checked By
Approved By

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
3/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
Content
1Level 2 enhance repair process...............................................................................4
2Warranty Check and Visual Inspection ...................................................................5
2.1 Warranty confirmation of L1.....................................................................................5
2.2 Visual mechanical check..........................................................................................6
2.3 Pretest........................................................................................................................8
3Software download .................................................................................................13
3.1 Equipments requested when download：............................................................13
3.2 SUGAR.....................................................................................................................14
SW download process...................................................................................................15
3.4 Multi-Download Tool...............................................................................................17
3.5 Kill Switch................................................................................................................21
5Disassembly and assembly 9015W .......................................................................24
5.1 ESD Safety...............................................................................................................24
5.2 Disassembly tool.....................................................................................................25
5.3 Disassembly process .............................................................................................25
5.4 Reassembly Process ..............................................................................................35
5.5 Disassembly process evaluation...........................................................................35
6Disassembly Complete...........................................................................................36
7Level 2 repair...........................................................................................................37
8L2 Enhance repair...................................................................................................43
8.1 Position of L2 enhance components on main PCBA...........................................43
8.2 Trouble shooting for common failures..................................................................45
8.3 L2 enhance spare part list......................................................................................55
9PCBA exchange.......................................................................................................55
10 Other component exchange...................................................................................56
11 Final test ..................................................................................................................57
APPENDIX 1 Packaging Requirements ........................................................................58

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
4/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
1 Level 2 enhance repair process
Reassembly
Record in BIG
End
OK
Retest
OK
OK
Start
Visual Inspection
Warranty Check
Pretest & Failure confirm
SW Upgrade
Disassembly
L2 Repair
Retest
Function test
PCBA Replace
NG
NG
NG
Restore User Information
Back up user data
L2E Repair
Retest
OK
NG

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
5/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
2 Warranty Check and Visual Inspection
2.1 Warranty confirmation of L1
1) IMEI sticker check:
a) Power on the handset, enter *#06#
b) 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
2) Humidity sensitive label
If humidity sensitive label is not good, the cell phone will be considered as out of guarantee.
a) Liquid was detection by humidity sensitive label
b) Position of humidity sensitive sticker.
Humidity sensitive sticker is on the bottom of the front casing.
c) There are two Humidity sensitive sticker::
d) Position 1: on the back casing
e) Position 3: in the SD slot cover

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
6/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
2.2 Visual mechanical check
Mechanical warranties check items:
1) Corrosion
Corrosion on the USB connector, SIM connector, and other metal surfaces。
2) Hole (diameter > 1mm)
Here is the
humidity sensitive
sticker.

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
7/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
Holes on any surface, including the front casing, furnished frame, battery cover, touch Lens,
keypad…
3) Bump
Bumps (diameter > 1mm) on any surface, including front casing, decorate frame, battery
cover, touch Lens, keypad, etc.
4) Scratch
Scratches (length > 3mm) on any surface, including the front casing, decorate frame, battery
cover, touch Lens, keypad, etc.
5) Distortion
Bend, twisted or crushed on the h/s, cover/casing or connectors, etc.
6) Broken
Touch broken, casing/cover broken, etc.
7) Dropped
Keypad tear off, touch lens, connectors dropped, etc.
8) Gap
External physical damage relating to abnormal use, like front case and frame opened
9) Others
Damage caused by disassembly ,wrong part assembly, loss of components
Use in abnormal environment like high temperature causing plastic melts

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
8/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
2.3 Pretest
1) Check that the SIM card is set correctly.
2) Power on the cell device.
3) If the cell phone 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) After the phone power on, test step by step with the auto test code:
Press 0*0-0+= in calculator app 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 show “Text[X] xxx failed. Restart?”, press “YES”
to retest, press “Next”to go on next test and press ”NO”to finish test.
If one of the tests failed during “Auto”test mode, it will show “Text[X] xxx failed. Restart?”,
press “YES”to retest, press “Next”to go on next test and press ”NO”to finish test.
TRACABILITY
I. You can get some information such as IMEI, CU-REF, PTM, Date Code, etc.
II. Press “Pass” to continue.
Raw Data
I. It will running the test automatically, don’t touch TP during test and it will show
“Pass”if it functions well;
II. Press “PASS”to continue.

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
9/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
Touch Panel
I. Please draw on the yellow area and it will show “TEST RESULT OK!”;
II. Press “Pass” to continue.
LCD
I. You will see the LCD display three colors: RED, GREEN and BLUE if it
functions well;
II. Press “Pass” to continue;
III. You will see the LCD displays grey if it functions well;
IV. Press “Pass” to continue;
V. You will see the LCD displays black if it functions well;
VI. Press “Pass” to continue;
VII. You will see the LCD displays grey level if it functions well;
VIII. Press “Pass” to continue;
IX. You will see the LCD displays grey level if it functions well;
X. Press “Pass” to continue;
KEYPAD
I. Press the key displayed on the screen. The key on the screen will turn grey
when you press it if it functions well;
II. Press “Pass” to continue.

L2E Repair Document TCLCommunication Ltd.
Rev.
9015W Level 2 Enhance Repair Document
Page
1.0
10/62
All rights reserved. Transfer, copy, use or communication of this file is prohibited without authorization.
LCD BACKLIGHT
I. The screen backlight will be flashing if it functions well;
II. Press “Pass” to continue.
MAIN CAMERA
Press “Pass”to continue if the main camera functions well.
FRONT CAMERA
Press “Pass”to continue if the front camera functions well.
AUDIO
I. You will hear a voice prompt which introduces some emergency call numbers
from the speaker if it functions well;
II. Press “Pass”to continue;
III. Make a noise near the MIC, you will hear it from the receiver if it functions well;
IV. Press “Pass”to continue;
MIC
I. It will guide you to record a sound and if the sound can be play then means
the MIC function is OK;
II. Press “Pass”to continue.
ACCESSORY