Alcatel MTAG351 User Manual

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.

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1.0 2012-06-19 First Launch Shichuan

Rev. Date Modification description Prepared By Checked By Approved By

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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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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.

2) 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

2) Hole (diameter > 1mm)

 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.

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6) Broken

 Touch broken, casing/cover broken, etc.

7) Dropped

 Keypad torn, 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, lost of components

 Use in abnormal environment like high temperature cause plastic melts

3. Pretest

1) Check that the SIM card is set correctly.

2) Insert the battery.

3) Power on the cell phone.

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

5) 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.

6) Enter the phone code if necessary.

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

8) Press *01763*366# in dial screen and select “AUTO” or “MANU” to start testing

 LCD test.

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

ii. Select “Pass” to continue.

iii. Screen will turn black.

iv. Select “Pass” to continue.

v. 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.

i. Screen display OK and the temperature.

ii. Select “Pass” to continue.

 Keypad test.

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

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the screen will disappear.

ii. Select “Pass” to continue.

 Camera LED test.

i. The LED beside the main camera will turn on.

ii. Select “Pass” to continue.

 LCD backlight test.

i. LCD backlight will flash with three times.

ii. Select “Pass” to continue.

 Key backlight test.

i. Touch key backlight will flash with three times.

ii. Select “Pass” to continue

 Front camera test.

i. Scenery capture by front camera will display on the screen.

ii. Select “Pass” to continue

 Vibrator test.

i. Vibrator with vibrating.

ii. Select “Pass” to continue after vibrating stopped.

 Main camera test

i. Scenery capture by main camera will display on the screen.

ii. Select “Pass” to continue

 Receiver test.

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

ii. Select “Pass” to continue

 Speaker test.

i. Melody can be heard.

ii. Select “Pass” to continue.

 Mic-Receiver loop test.

i. Talk to the handset and your sound should be heard

ii. Select “Pass” to continue.

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 UIM card test.

i. Insert UIM card, it can be detected by handset.

ii. Select “Pass” to continue.

 Memory card test

i. When test pass, screen will display SD test OK.

ii. Select “Pass” to continue.

 USB test

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

ii. Select “Pass” to continue.

 Headset test

i. 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”

v. 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.

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

ii. Select “Pass” to continue

 WIFI test.

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

ii. Select “Pass” to continue.

 G-sensor test.

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

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ii. Select “Pass” to continue.

 Light-sensor test.

i. 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.

i. 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. Select “Pass” to continue.

 GPS test.

i. Satellite will be detected if subscribe the service.

ii. Select “Pass” to continue.

 Bt/Wifi Address.

i. The MAC address of Bt&Wifi should be displayed

ii. Select “Pass” to continue

4. 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.

i. 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. 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

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

Step 5:Seperate the FPC connector and Camera

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Step 6: Remove PCBA from the front casing

Step 7：Separate FPC from the PCBA(

Temperature: 350±10℃))

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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 Spare part

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1 LCD

2 Touch Panel

3 Furnished Front casing

4 Receiver

5 Home Key

6 PCBA

7 Sub Camera

8 Side key FPC-1

9 Side Key-1

10 Side key FPC-2

11 Side Key-2

12 Speaker

13 Antenna Stand

14 Furnished Frame

15 Screw-1

16 Screw-2

17 Battery

18 Back Cover

AT01 MTAG351 L2 spare part list

Item Description Part number Remark

1 Furnished front casing BCA31P0A20C0 Bluish black soft touch

2 Furnished front casing BCA31P0E20C0 Spicy red soft touch

3

4 LCD Module AUA350T207C1

5 Furnished frame BCC24G0V10C0 Dark chrome

6 Home key BFC31P0A20C0 Black painting,Home key deco:Dark chrome

Furnished Touch panel

Module

BED24G0A17C3

IC:Focal5206,,Black printing on the backside,,no

logo

262K colors,3.5",320×480,TFT,Driver

IC:ILI9481B(COG)

7 Volume side key BFC31P0A11C0 Dark chrome

8 Power side key BFC31P0A12C0 Dark chrome 9 volume key FPC SBF31P00011C 2Layer,26.3*10.2mm

10 power key FPC SBF31P00021C 2Layer,12.5*10.95mm 11 rubber gasket BNG31P0006C0 12 receiver plug BNG31P0007C0 13 Camera module ASA3001017C1 3M,6.5×6.5×4.1mm,with CONN

14 wafer camera ASA0300001C2

15

16 Receiver insulated label BLE31P0000C0 TKAPTON 0.15mm,12*7*0.15mm

FRAME CONDUCTIVE

FOAM

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BLF31P0000C0 4*3.5*1.6mm,work thickness

MTAG351 Level 2 Repair Document

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

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17 Screw

18 Screw BMA1421250C0

19 Main Antenna BBC24G0000C2

20 Receiver AWB0612S06C1 6×12×2mm,,32 Ohms,Spring contact

21 Speaker AWA2014S04C1

22 Speaker AWA1420S00C1 14×20×3.0mm,,,Spring contact

23 Audio Jack ARG0050004C1 5pin,Diameter=3.5mm, H=4.3

24 USB connector ARH0050018C1 5pin,0.65pitch,H=2.4mm 25 T-Flash card connector ARJ0080046C1 8pin,1.1pitch,H=1.6mm 26 SIM card connector ARD0060051C1 6pin,2.54pitch,13.6×16.4×H1.8mm 27 Battery connector ARE0040021C1 4pin,3.1pitch,H=5.4mm 28 Camera socket ARK0240004C1 24pin,,8×8×H3.5mm 29 Microphone AWC4013M02C1 Φ4.0×T1.3mm,-44±3dB,SMT 30 Keypad film BJA31P0000C1 1 dome,17×10.5mm 31 Vibrator motor AVA0410M01C1 11*4.4*3.6mm,DC2.7V,SMT type 32 TP adhesive Tape 1 BPA31P0001C1 33 TP adhesive Tape 2 BPA31P0002C1 34 TP film BPA24G0004C0 Φ4.5mmX0.15mm 35 conductive adhesive tape BLG31P0000C0 36 Commercial Label CPE0000026C0 64×49mm,L type, blank 37 SWAP PCBA F-B24G0MSIN1 SWAP PCBA,AT01,800,MT351-2A\BMSIN1

TA54-

T3000952AAAA

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

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

十 type

20×14×3.0mm,91dB±3dB,,spring contact, second

source

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 Remark

Battery cover 3s Plastic Wedge Class 1

Remove screws on decorate casing Volume key 5S Tweezers Class 1

Power key 5S Tweezers Class 1

Touch screen connector 5s Tweezers Class 1

Camera connector 5S Tweezers Class 1

LCD connector 5S Tweezers Class 1

20 screwdriver Class 1

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Remove PCBA 20s Plastic Wedge

Tweezers

Remove speaker1 5s Tweezers Class 1

Remove speaker1 mask 5s Tweezers Class 1

Separate LCD 20s Plastic Wedge

Tweezers

Remove main camera 5s Tweezers Class 1

Remove touch screen 20s Plastic Wedge

Tweezers

Remove SIM connector 120s Hot air gun

Tweezers

Remove audio jack 5s Tweezers Class1

Remove speaker2 5s Tweezers Class1

Remove T flash connector

Battery connector 40s Hot air gun

Remove Microphone 40 Hot air gun

Remove Vibrator 40 Hot air gun

120s Hot air gun

Tweezers

Class 2

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 Action And Solution

Charging Bad

or No Charge

Switch on with battery power

Main display Missing line or column; no

Vibrator The vibrator does not work Check the contact on the PCBA (dirty or

Network Problem No emission or No reception Check the antenna contactor on the B

TF card No communication between

Camera Camera doesn't work Check camera module

Can ‘t Switch on 1.Check voltage of the battery;

display; bad or no LCD backlight

the phone and the TF card

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;

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;

oxidized), replace the vibrator if necessary;

cover; Check the contact on the PCBA (dirty or oxidized); Check the TF connector on the PCBA;

Check also camera FPC broken or not

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Audio Bad or no emission (TX

audio from mobile);

Bad or no reception (RX audio on mobile); Hands-free problem; Key beep and melody problem

In case the LEVEL 2 repair can’t solve the problem, or if the board is damaged, exchange the board.

Check microphone, replace it if necessary; Check the contact on the PCBA (dirty or oxidized) Check loud speaker, replace it if necessary; Check the contact on the PCBA (dirty or oxidized)

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.

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

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

4) 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

2) Vibrator

3) Receiver

4) Speaker

5) Microphone

6) Camera module

7) Audio connector

8) 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

S/W version and leading exporter

11. Tools

Screwdriver (TORX6)

Plastic Stick

Short code

Date code

Hardware version

Figure 1.1 Commercial Label

Tweezers

Soldering iron

CU reference

Hot air gun

Knife

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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)

Network code

Commercial label

PCBA of Flip Phone

put commercial label and network code on

one side

PCBA of Bar Phone

Custom label

Failure code label

Put failure code label and custom label on

other side

Network code

Custom label

Put commercial label and custom label on

PCBA

2) PCBA Packing Requirements

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

identify.

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At the same time put network code

label and failure code label

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Commercial

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Failure code

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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

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

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Alcatel MTAG351 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual