AT01 MTAG351 L2 Repair V1.0 Alcatel Service Manual

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By NCK Team

L2 Repair Document

TCT

Mobile Limited

AT01
MTAG351

Note: this manual is non-contractual and TCT Mobile Limited can modify it without prior notice the
characteristics of described equipments.

Rev.
1.0

MTAG351 Level 2 Repair Document

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TCT

L2 Repair Document

1.0

2012-06-19

First Launch

Shichuan

Rev.

Date

Modification description

Prepared By

Rev.
1.0

MTAG351 Level 2 Repair Document

Mobile Limited

Checked By

Approved By

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L2 Repair Document

TCT

Mobile Limited

Content
1. Level 2 repair process .............................................................................................. 4
2. Warranty Check and Visual Inspection ................................................................... 5
2.1. Warranty confirmation of L1: ................................................................................... 5
2.2. Visual mechanical check: ......................................................................................... 5
3. Pretest ........................................................................................................................ 6
4. software update ......................................................................................................... 9
5. Disassembly and assembly.................................................................................... 13
5.1. Disassembly tool ..................................................................................................... 13
5.2. Disassembly process.............................................................................................. 14
5.3. Assembly Process .................................................................................................. 20
6. Disassembly process evaluation ........................................................................... 20
7. Level 2 repair ........................................................................................................... 21
8. PCBA Exchange ...................................................................................................... 22
9. Other component exchange ................................................................................... 22
10. Commercial label marking (MEID sticker) ............................................................. 22
10.1. Blank label size .................................................................................................... 22
10.2. Samples for commercial label ............................................................................ 23
11. Tools ......................................................................................................................... 23
12. Package Requirement ............................................................................................. 24

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Mobile Limited

1. Level 2 repair process

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2. Warranty Check and Visual Inspection
2.1. Warranty confirmation of L1:
1)

MEID label check:
a) The MEID number must be the same with the one on the MEID label. If not, it’s out of warranty
policy
b) MEID label should not be
Removed

Scratched

Unreadable

Un-approved or un-provided by Alcatel.

Humidity sticker: Liquid detection on humidity sticker.

2.2.

Visual mechanical check:
1)

Corrosion

Corrosion on the USB connector, SIM connector, and other metal surface

Hole (diameter > 1mm)

Holes on any surface, including the front casing, furnished frame, battery cover, touch Lens,
keypad…

Bump

Bumps (diameter > 1mm) on any surface, including front casing, decorate frame, battery
cover, touch Lens, keypad, etc.

Scratch

Scratches (length > 3mm) on any surface, including the front casing, decorate frame, battery
cover, touch Lens, keypad, etc.

Distortion

Rev.
1.0

Bend, twisted or crushed on the h/s, cover/casing or connectors, etc.
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L2 Repair Document
6)

TCT

Mobile Limited

Broken

Touch broken, casing/cover broken, etc.

Dropped

Keypad torn, touch lens, connectors dropped, etc.

Gap

External physical damage relating to abnormal use, like front case and frame opened

Others

Damage caused by disassembly ,wrong part assembly, lost of components

Use in abnormal environment like high temperature cause plastic melts

Pretest

Check that the SIM card is set correctly.

Insert the battery.

Power on the cell phone.

If the cell phone can not power on, visually check the condition of the battery connector. Replace it if
necessary..

If the cell phone asks to input NCK code, which means it is SIM locked, and can only be worked with
dedicated SIM card. Use the correct SIM card.

Enter the phone code if necessary.

If power on, test step by step with the auto test code:

Press *01763*366# in dial screen and select “AUTO” or “MANU” to start testing
LCD test.

Screen will display Red/Green/Blue three color bars.

ii.

Select “Pass” to continue.

iii.

Screen will turn black.

iv.

Select “Pass” to continue.

Screen will display with gray bars ,the back light become week from bottom to top.

vi.

Select “Pass” to continue.

vii.

Screen will display white backlight.

viii.

Select “Pass” to continue.
Battery temperature test.

Screen display OK and the temperature.

ii.

Select “Pass” to continue.
Keypad test.

Rev.
1.0

Press hard key(Vol up & Vol down Home) or touch icon (Menu &Search&Back), the icon on
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Mobile Limited

the screen will disappear.
ii.

Select “Pass” to continue.
Camera LED test.

The LED beside the main camera will turn on.

ii.

Select “Pass” to continue.
LCD backlight test.

LCD backlight will flash with three times.

ii.

Select “Pass” to continue.
Key backlight test.

Touch key backlight will flash with three times.

ii.

Select “Pass” to continue
Front camera test.

Scenery capture by front camera will display on the screen.

ii.

Select “Pass” to continue
Vibrator test.

Vibrator with vibrating.

ii.

Select “Pass” to continue after vibrating stopped.
Main camera test

Scenery capture by main camera will display on the screen.

ii.

Select “Pass” to continue
Receiver test.

Screen will display “Receiver discrete test” and handset will sound di-di-di-di.

ii.

Select “Pass” to continue
Speaker test.

Melody can be heard.

ii.

Select “Pass” to continue.
Mic-Receiver loop test.

Talk to the handset and your sound should be heard

ii.

Select “Pass” to continue.

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Mobile Limited

UIM card test.

Insert UIM card, it can be detected by handset.

ii.

Select “Pass” to continue.
Memory card test

When test pass, screen will display SD test OK.

ii.

Select “Pass” to continue.
USB test

Plug and remove the USB cable according to prompt. Handset will display OK.

ii.

Select “Pass” to continue.
Headset test

Plug headset when handset prompts and screen will display “OK”.

ii.

Melody can be heard on left earphone when screen displays “Headset left discrete test”

iii.

Select “Pass” to continue.

iv.

Melody can be heard on right earphone when screen displays “Headset right discrete test”

Select “Pass” to continue.

vi.

Screen will display “Headset Mic loop”.

vii.

After heard the loop sound, select “Pass” to continue.

viii.

Screen will prompt remove the headset. When headset removed screen will display “OK”.
Bluetooth test.

Handset will detect the access point and display “OK” and MAC address.

ii.

Select “Pass” to continue
WIFI test.

Handset will detect the WIFI network and display “OK” and WIFI information.

ii.

Select “Pass” to continue.
G-sensor test.

Screen will display “put the handset face up and towards up”, follow this prompt screen will
display left arrow, right arrow and down arrow.

ii.

Select “Pass” to continue.
Compass test.

i.
Rev.
1.0

Screen will display compass and arrow always point north.
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ii.

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Select “Pass” to continue.
Light-sensor test.

Handset will detect the ambient light. The lightness data will change when put something
close to the sensor on the left top corner.

ii.

Select “Pass” to continue.
Proximity-sensor test.

Follow handset prompt to shadow the sensor on the left top corner from far to near and from
near to far, the relevant data will change that displayed on the screen.

ii.

GPS test.

Satellite will be detected if subscribe the service.

ii.

Select “Pass” to continue.
Bt/Wifi Address.

Select “Pass” to continue.

The MAC address of Bt&Wifi should be displayed

ii.

Select “Pass” to continue

software update

We use MFT tool to do software upgrading in this case. Firstly, you have to install the tool in your computer;
after installation of this MFT, you can find it in your computer`s program list as below.

Take out the battery of the handset, press the volume down key and do not release it, at the same time
connect to computer the handset via USB cable; you can release the volume down key about 5
seconds after the USB cable is connected.

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ii.

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Mobile Limited

After all this above is done, the computer may prompt a dialog box for installing driver for new
hardware; choose the corresponding driver to install.

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Screw driver

Tweezers

Soldering iron

Hot air gun

Hook

Knife

TCT

Mobile Limited

Please refer to APPENDIX 1 and find out the picture of the tool.

5.2. Disassembly process
Step 1: Before disassembling process begins, make sure you have worn static loop, and the static loop has
good connection with GND, which can help to avoid ESD damage on the PCBA during disassembling.

Step 2: Remove the screws from the cover first.

Step 3: Separate the decorate frame.
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Mobile Limited

Step 4: Remove the Speaker, antenna, and the shield for Camera LED

Step 5:Seperate the FPC connector and Camera

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Mobile Limited

Step 6: Remove PCBA from the front casing

Step 7：Separate FPC from the PCBA(Temperature: 350±10℃))

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Mobile Limited

Step 8: Firstly, Please use hot wind gun heating around the touch lens, then separate the touch lens from
furnished front casing. (Temperature: 100±10℃, Air Level:3, Height:5-10mm, Time:30s)

Step 9: Disassembly completed！

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NO
Rev.
1.0

Mobile Limited

Spare part
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L2 Repair Document
1

LCD

Touch Panel

Furnished Front casing

Receiver

Home Key

PCBA

Sub Camera

Side key FPC-1

Side Key-1

Side key FPC-2

Side Key-2

Speaker

Antenna Stand

Furnished Frame

Screw-1

Screw-2

Battery

Back Cover

Mobile Limited

AT01 MTAG351 L2 spare part list
Item

Description

Part number

Remark

Furnished front casing

BCA31P0A20C0

Bluish black soft touch

Furnished front casing

BCA31P0E20C0

Spicy red soft touch

Furnished Touch panel
Module

BED24G0A17C3

LCD Module

AUA350T207C1

Furnished frame

BCC24G0V10C0

Dark chrome

Home key

BFC31P0A20C0

Black painting,Home key deco:Dark chrome

7
8
9
10
11
12
13

Volume side key
Power side key
volume key FPC
power key FPC
rubber gasket
receiver plug
Camera module

BFC31P0A11C0
BFC31P0A12C0
SBF31P00011C
SBF31P00021C
BNG31P0006C0
BNG31P0007C0
ASA3001017C1

Dark chrome
Dark chrome
2Layer,26.3*10.2mm
2Layer,12.5*10.95mm

wafer camera

ASA0300001C2

FRAME CONDUCTIVE
FOAM

BLF31P0000C0

4*3.5*1.6mm,work thickness

Receiver insulated label

BLE31P0000C0

TKAPTON 0.15mm,12*7*0.15mm

Rev.
1.0

IC:Focal5206,,Black printing on the backside,,no
logo
262K colors,3.5",320×480,TFT,Driver
IC:ILI9481B(COG)

3M,6.5×6.5×4.1mm,with CONN
0.3M,3.24×2.8×2.74mm,20pin,SMT,with metal
can,for India version

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Mobile Limited

Screw

TA54T3000952AAAA

PM1.4×4.0mm,HD=Ф2.5×T0.5mm,BZN(3+),十 type

Screw

BMA1421250C0

PM1.4×(0.3P)×L2.1mm,HD=Ф2.5×T0.5mm,silvery,
十 type

Main Antenna

BBC24G0000C2

Receiver

AWB0612S06C1

Speaker

AWA2014S04C1

Speaker

AWA1420S00C1

14×20×3.0mm,,,Spring contact

Audio Jack

ARG0050004C1

5pin,Diameter=3.5mm, H=4.3

24
25
26
27
28
29
30
31
32
33
34
35
36
37

USB connector
T-Flash card connector
SIM card connector
Battery connector
Camera socket
Microphone
Keypad film
Vibrator motor
TP adhesive Tape 1
TP adhesive Tape 2
TP film
conductive adhesive tape
Commercial Label
SWAP PCBA

ARH0050018C1
ARJ0080046C1
ARD0060051C1
ARE0040021C1
ARK0240004C1
AWC4013M02C1
BJA31P0000C1
AVA0410M01C1
BPA31P0001C1
BPA31P0002C1
BPA24G0004C0
BLG31P0000C0
CPE0000026C0
F-B24G0MSIN1

5pin,0.65pitch,H=2.4mm
8pin,1.1pitch,H=1.6mm
6pin,2.54pitch,13.6×16.4×H1.8mm
4pin,3.1pitch,H=5.4mm
24pin,,8×8×H3.5mm
Φ4.0×T1.3mm,-44±3dB,SMT
1 dome,17×10.5mm
11*4.4*3.6mm,DC2.7V,SMT type

6×12×2mm,,32 Ohms,Spring contact
20×14×3.0mm,91dB±3dB,,spring contact, second
source

Φ4.5mmX0.15mm
64×49mm,L type, blank
SWAP PCBA,AT01,800,MT351-2A\BMSIN1

The MTAG351 L2 Spare Part List will be updated in future. And, you can download the latest version
form TS web: https://css.tclmobile.cn/

5.3. Assembly Process
Please refer to the disassembly process for assembly in reverse order.

6. Disassembly process evaluation
The MTAG351 parts disassembly time is listed here. Technique level and disassembly method listed below.
For technique levels:
1) Class 1 stands for easy to disassemble.
2) Class 2 stands for normally to disassemble.
3) Class 3 stands for difficulty to disassemble.

Spare part

Time

Jig

Class

Battery cover

Plastic Wedge

Class 1

Remove screws on
decorate casing
Volume key

screwdriver

Class 1

Tweezers

Class 1

Power key

Tweezers

Class 1

Touch screen connector

Tweezers

Class 1

Camera connector

Tweezers

Class 1

LCD connector

Tweezers

Class 1

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MTAG351 Level 2 Repair Document

Remark

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Remove PCBA

20s

Class 2

Plastic Wedge
Tweezers
Tweezers

Remove speaker1
Remove speaker1 mask

Tweezers

Class 1

Separate LCD

20s

Class 2

Remove main camera

Plastic Wedge
Tweezers
Tweezers

Remove touch screen

20s

Class 2

Remove SIM connector

120s

Remove audio jack
Remove speaker2
Remove T flash
connector
Battery connector

5s
5s
120s

Plastic Wedge
Tweezers
Hot air gun
Tweezers
Tweezers
Tweezers
Hot air gun
Tweezers
Hot air gun
Tweezers
Hot air gun
Tweezers
Hot air gun
Tweezers

40s

Remove Microphone

Remove Vibrator

Mobile Limited

Class 1

Class 3

The connector is easy to damage

Class1
Class1
Class 3

The connector is easy to damage

Class3

The connector is easy to damage

Class3

Easy to damage the FPC

Class3

Easy to damage the FPC, action
must take ambient components into
consideration

7. Level 2 repair
This chapter describes the LEVEL 2 repair that can be done without any diagnostic equipment.
Problem description
Charging

Bad
or
No Charge

Switch on with
battery power

Can ‘t Switch on

Main display
Vibrator

Missing line or column; no
display; bad or no LCD
backlight
The vibrator does not work

Network Problem

No emission or No reception

TF card

No communication between
the phone and the TF card
Camera doesn't work

Camera
Rev.
1.0

Action And Solution
1.Check voltage of the battery: if 0V,
charge some minutes and check the
charge indicator;
2.Check the battery contact, change the
battery connector if broken;
3.Check the charge plug on B cover,
change it if necessary;
1.Check voltage of the battery;
2.Check the battery contact, change the
battery connector if broken;
3.Check the keypad
4.Check BTB connector socket pin
Check Connection flex (FPC
cable),change it if necessary;
Replace display module if necessary;
Check the contact on the PCBA (dirty or
oxidized), replace the vibrator if
necessary;
Check the antenna contactor on the B
cover;
Check the contact on the PCBA (dirty or
oxidized);
Check the TF connector on the PCBA;
Check camera module
Check also camera FPC broken or not

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Audio

TCT

Mobile Limited

Bad or no emission (TX
audio from mobile);

Check microphone, replace it if
necessary;
Check the contact on the PCBA (dirty or
Bad or no reception (RX
oxidized)
audio on mobile);
Check loud speaker, replace it if
Hands-free problem;
necessary;
Key beep and melody
Check the contact on the PCBA (dirty or
problem
oxidized)
In case the LEVEL 2 repair can’t solve the problem, or if the board is damaged, exchange the board.

8. PCBA Exchange
If Level 2 repair does not solve the failure, it is mandatory to change the PCBA and follow the process
herein.
1)

Collect the PCBA (without accessories, LCD and camera), with microphone and vibrator.

Get a new PCBA from the swap stock. Reuse those accessories to assemble the mobile.

Fill in the record sticker with IMEI number, fault code, short code, Hardware Technical Level and
software version.

Send the NG PCBA with record sticker back to L3 repair center with the recommended packaging
method,
Note: packaging method please refer item “12. Package requirement”.

9. Other component exchange
The other components exchange such as
1)

LCD module

Vibrator

Receiver

Speaker

Microphone

Camera module

Audio connector

Other related mechanical components.

We need to be very careful to handle the components with related special tool or jig (especially replacing
new components)
It is better to handle it with plastic tools (plastic tweezers and wedge etc.).
Besides operator must wear anti-static gloves, fingertips or wear static loop during the whole process of
components exchange.

10. Commercial label marking (MEID sticker)
10.1. Blank label size
Label Dimension Reference : 64×49mm

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10.2. Samples for commercial label

Short code
S/W version and
leading exporter

CU reference

Date code
Short
code Hardware version
Figure 1.1 Commercial Label
11. Tools

Plastic Stick

Screwdriver (TORX6)

Rev.
1.0

Tweezers

Soldering iron

MTAG351 Level 2 Repair Document

Hot air gun

Knife

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L2 Repair Document

Mobile Limited

12. Package Requirement
1)

Appearance Requirements of PCBA
i.

The failure code label, commercial label, custom label and network code should be stuck onto
PCBA

ii.

The repair PCBA and custom label should be matched (see appendix one for the

detailed

information)
PCBA of Flip Phone
Custom label
Network code
Commercial
label

Failure code
label

put commercial label and network code on

Put failure code label and custom label on

one side

other side

PCBA of Bar Phone
Network code

Custom label

Commercial

code
Failure code
label

Put commercial label and custom label on

At the same time put network code

PCBA

label and failure code label

PCBA Packing Requirements
i.

After packing with anti-vibration bag, the commercial label on PCBA should be easy to
identify.

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Custom
label is
easy to see

Inner packing is anti-static bag

Outer packing is anti-vibration bag

Put commercial label on anti-vibration bag

Packing Requirement
Note: Please pay attention to the following points when different models put into one box. Stick up
the same models with tapes.
i.

Mark the model, quantity and specification of custom label on tape.

ii.

The packing box for PCBA should have marking sticker and well sealed by the tape with TCL
logo

iii.

Rev.
1.0

Finally put all the packing boxes into packing cases strong enough and post to HK.

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