Tcl Pixi4-6 3g Technical manual

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Pixi4-6 3G

8050X_D_G&E

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

2015-12-19

Draft creation

Mani Lee

Rev.

Date

Modification description

Prepared By

Checked By

Approved By

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Content

1Level 2E 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........................................................................................................................6

3Battery......................................................................................................................11

3.1 Battery information.................................................................................................11

3.2 Battery test ..............................................................................................................13

3.3 Battery specification...............................................................................................14

3.4 WARNING of Battery disassembling .....................................................................18

4Software 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 8050E ............................................................................23

5.1 ESD Safety...............................................................................................................23

5.2 Disassembly tool.....................................................................................................23

5.3 Disassembly process...............................................................................................24

5.4 Reassembly process................................................................................................35

5.5 Disassembly process evaluation............................................................................35

6Disassembly Complete...........................................................................................35

7Level 2 repair...........................................................................................................36

8L2 Enhance repair...................................................................................................44

8.1 Position of L2 enhance components on PCBA ....................................................45

8.2 Trouble shooting for common failures..................................................................47

8.3 L2 enhance spare part list......................................................................................60

9PCBA exchange.......................................................................................................62

10 Other component exchange...................................................................................62

10 Function test............................................................................................................63

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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

IMEI 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.

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.

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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.

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

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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:

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

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

select “MANU” to do the MMI test manually.

Traceability

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

II. Press “pass” key to continue.

Touch Panel

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

III. Press “PASS” to continue.

RAW Data

I. You can see Raw data test is running;

II. Press “pass” key 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.

KEYPAD

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

turn gray on the screen.

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II. Press “Pass” to continue.

LCD BACKLIGHT

I. You will see the screen flash 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;

Front Camera

I. You will see the LCD displays the picture that front camera catch 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;

Hall

Press “Pass” to continue if it functions well

AUDIO

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

II. Press ”Pass” to continue;

MIC

I. Press “start “to record sound, and then press” Play” if it functions well

II. Press “PASS” to continue.

Sub MIC

I. Press “start “to record sound, and then press” Play” if it functions well

II. Press “PASS” to continue.

Vibrator

You can feel the vibration if it functions well.

Accessory

I. Insert the headset.

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II. You will hear one record in left discrete;

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

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 earphone if 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;

Virtual Proximity Sensor

I. It will display “Please shadow the touch panel “ ,and follow the instruction if it functions well.

II. 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;

SIM

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

II. Press “Pass” to continue;

Memory Card

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

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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 3.704V”, “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;

Network

I. Insert SIM card and follow the instruction if it functions well.

II. Press”Pass” to continue;

Calling

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

II. Press “Pass” to continue;

Battery ctrl

I. You will see the battery status information.

II. Press ”Exit” to continue;

Factory Reset

It will do the factory reset automatically if you press the item.

EXIT

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I. End the TEST and go back the calculator screen

3 Battery

3.1Battery information

1) Battery picture

SCUD battery

Hyperpower battery

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2) Battery feature

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 4-6 3G

Power pack

8050X_D_G&E

Standby time (hours)

Talking time

Power pack Lithium

653hours

15Hours-3G

26Hours-2G(depend on different

network)

* Pmin: minimum transmission power

** DTX: no transmission during period of silence

Model

Element

Capacity

Battery Li

Lithium

2850mAh

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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 time

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.

3.2Battery test

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

8050X_D_G&E

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.

3.3Battery specification

1) Battery specification for SCUD

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2) Battery specification for Hyperpower

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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.

4 Software download

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

downloading tool is called “Sugar MTK_SP V3.3.4”. 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 Sugar MTK_SP V3.3.4, and then select the “Install driver”check box

for the driver installation.

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4.3. SW download process

I. Login the Sugar MTK_SP V3.3.4, then select the 8050 model:

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II. Click the „Get Status‟button, it will display the SW version , IMEI, Cu ref etc of the

handset, press “Yes “to continue

TCL Pixi4-6 3G Technical manual

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