Tcl 5056o Technical manual

L2 Repair Document TCLCommunication Ltd.

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POP4-5.5C ATT

5056O

Note: this manual is non-contractual and TCL Communication Ltd. can modify it without prior

notice on the characteristics of described equipments.

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1.1 Update

1.0 2016-02-15 Draft creation Mani Lee Abby Zhou Damon Han

Rev. Date Modification description Prepared By Checked By Approved By

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Content

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

2Warranty Check and Visual Inspection ...................................................................5

2.1Warranty confirmation of L1.....................................................................................5

2.2Visual mechanical check..........................................................................................6

2.3Pretest........................................................................................................................7

3Battery......................................................................................................................12

3.1Battery information.................................................................................................12

3.2Battery test ..............................................................................................................14

3.3Battery specification...............................................................................................16

3.4WARNING of Battery disassembling .....................................................................17

4Software download .................................................................................................18

4.1. Equipments requested when download：............................................................18

4.2. Handset driver installation .....................................................................................18

4.3. SW download process............................................................................................19

5 Disassembly and assembly 5056O............................................................................22

5.1 ESD Safety...............................................................................................................22

5.2 Disassembly tool.....................................................................................................22

5.3 Disassembly process...............................................................................................22

6Level 2 repair...........................................................................................................22

5.4 Reassembly process................................................................................................30

5.5 Disassembly process evaluation............................................................................31

7Disassembly Complete...........................................................................................31

8L2 Enhance repair...................................................................................................40

8.1Position of L2 enhance components on PCBA ....................................................41

8.2Trouble shooting for common failures..................................................................42

8.3L2 enhance spare part list......................................................................................54

9PCBA exchange.......................................................................................................54

10Other component exchange...................................................................................54

10Function test............................................................................................................55

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1 Level 2E repair process

Reassembly

Record in BIG

End

OK

Retest

OK

Start

Visual Inspection

Warranty Check

Pretest & Failure confirm

SW Upgrade

Disassembly

L2 Repair

Retest

Function test

PCBA Replace

NG

Restore User Information

Back up user data

L2E Repair

Retest

OK

NG

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2 Warranty Check and Visual Inspection

2.1 Warranty confirmation of L1

¾IMEI sticker check:

1) Power on the handset, enter ”Settings” -> “About phone” -> “Status” -> “IMEI/IMEI SV”

2) 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.

¾Humidity 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).Three position of humidity sensitive sticker.

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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)

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.

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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

2.3 Pretest

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

2) Power on the cell phone.

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

Press *#2886# in dial screen 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.”

Traceability

I. You can get information such as BT, CU-REF, PTH ,MMI,etc.,

II. Press “pass” key to continue.

RAW Data

I. You can see Raw data test is running;

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II. Press “pass” key to continue;

Touch Panel

I. “Please draw in the yellow area” according to instructions

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 display greychart if it functions well.

IV.Press “Pass” to continue.

V. You will see the LCD display black if it functions well.

VI.Press “Pass” to continue.

VII. You will see the LCD display white if it functions well.

VIII. Press “Pass” to continue.

IX.You will see the LCD display grey if it functions well.

X. Press “Pass” to continue.

Keyboard

I. You will see the key of the V+, V-, and power, click the corresponding key, then

the key turn gray on the screen.

II. Press “Pass” to continue.

LCD BACKLIGHT

I. You will see the screen flash if it functions well

II. Press “Pass” to continue.

Key Backlight

I. You will see the keypad flash if it functions well

II. Press “Pass” to continue.

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Front Camera

I. You will see the LCD displays the picture that front camera catch if it functions

well;

II. Press “Pass” to continue.

Main Camera

I. You will see the LCD displays the picture that back camera catch if it functions

well;

II. Press “Pass” to continue;

Camera led

I. You will see the Camera led light on if it functions well;

II. Press “Pass” to continue;

Charge Led

I. It will display “Please check charge LED" if it functions well.

II. Press “Pass” to continue;

AUDIO

I. You will hear piece of record if it functions well;

II. Press ”Pass” to continue;

Vibrator

You can feel the vibration if it functions well.

Memory Card

I. Insert SD card and the phone will detect it if functions well;

II. Press “Pass” to continue;

Accessories

I. Insert the headset.

II. You will hear one record in left discrete;

The “Volume Down “and “Volume Up” will display grey if it functions well.

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III.Press ”Pass” ,you will hear one record in right discrete;

The “Volume Down “and “Volume Up” will display grey if it functions well.

IV. Press ”pass” to continue;

V.You will hear piece of record if it functions well;

VI. remove your headset

VII. Press ”Pass” to continue;

FM

I. You will hear the sound from on channel when you insert earphoneif it functions

well;

II. Remove the ear phone then press “Pass” to continue;

USB/ Charger

I. Insert USB cable according to instruction, then it will say “USB:OK

Charger :OK” ;

II. Remove USB cable according to instruction

III.Press “Pass” to continue;

G-Sensor

I. Put the handset up and towards up according to instruction;

II. Put the handset towards the directions indicated by instructions; it will say “All

positions checked” after you following all the directions if it if it functions well;

III. Press “Pass” to continue;

Light Sensor

Press “Pass “to continue if it functions well.

Proximity Sensor

II. It will display “Please shadow the sensor “ ,and follow the instruction if it

functions well.

II. Press “Pass” to continue;

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SIM

III. Insert SIM card and the phone will detect it if functions well;

IV. Press “Pass” to continue;

Battery Temperature

I. It will display “Battery temperature should between: 20~50”, “current is xxx”

“Battery content should between: 30~80%”, “current is xxx”

“Battery Voltage is xxx”, “Battery Present is xxx” if it functions well;

II. Press ”Pass” to continue;

BLUETOOTH

I. Bluetooth will search automatically and it will display device address if it

functions well;

II. Press ”Pass” to continue;

WIFI

I. It will search for WIFI hotspot and display searched result on the screen if it functions well;

II. Press”Pass” to continue;

GPS

I. It will run GPS and search for satellite, and then it will display info such as “PRN”, “SUR”,

etc. on the screen if it functions well;

II. Press”Pass” to continue;

Battery Level

Please follow the instruction if it functions well.

Firmware

I. It will displays the TP module and firmware version if it functions will

II. Press “Pass” to continue;

SoftwarePartion

I. It will displays the software version if it functions will

II. Press “Pass” to continue;

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Calling

I. It will automatically call the emergency call if it functions well.

II. Press “Pass” to continue;

Hardwareinfo

It will displays the hardware information :G-sensor, light sensor ,SIM ,etc if it

functions will

Factory Reset

I. It will display “This will eraser all data from your phone internal storage.Do you

want factory reset ?” if it functions well.

II. Press “Reset” to confirm;

Exit

It will exit the test automatically.

3 Battery

3.1Battery information

Battery picture

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1) Battery feature

2) 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 4-6 3G

Power pack

5056O

Standby time (hours) Talking time

Model Element Capacity

Battery Li Lithium 2500mAh

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Power pack Lithium 2500*0.8/3.8=526h

2500*0.8/4.3=465h 2500*0.8/164=12.2h

2500*0.8/221=9.1h

* Pmin: minimum transmission power

** DTX: no transmission during period of silence

3) 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 time

Soft pack 3.5H

Note:

¾If the battery is new, charge it before use. Battery icon will appear after charging a short

time.

¾If the battery is deeply discharged, battery icon will appear after charging several minutes

and accompany with a slight sound.

3.2Battery test

1) Below table describes the various events related to a standard charger connected to a cell phone.

5056O

Cell phone status before

charger connected ON OFF

During charging

Display lights up and following battery icon displayed:

Sequential icon flashing:

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After charging

(charger connected)

Following fixed battery icon display :

Table - Battery charge status on handset

2) If the display does not light on or battery icon does not flash when the charger or the cell phone’s

charge function is defective with mechanical or electronics.

In this case:

a) Replace the charger to charge.

Confirm it works correctly or not.

If it cannot work correctly after change charger.

b) Check the Charge connector on the cell phone.

If it is damaged, replace the cell phone.

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3.3Battery specification

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3.4WARNING 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 can be re-used after disassembly if it is normal.

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4 Software download

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

downloading tool is called “Multi-Download QCT_SP”. Handset Software can be

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

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

4.1. Equipments requested when download：

⑴A handset with full power;

⑵PC with windows system;

⑶A USB cable.

4.2. Handset driver installation

Double click to install the Multi-Download QCT_SP, and then select the “Install driver” check

box for the driver installation.

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4.3. SW download process

I. Login the Multi-Download QCT_SP, then select the 5056 O model:

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II. Click the ‘Download’ button, it will display the SW version , IMEI, Cu ref etc of the

handset.

TCL 5056O Technical manual

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