TCL 30 Bedienungsanleitung

Service Manual TCL Communication Technology Holdings Ltd.

Rev.: 1.0

TCL 30 & TCL 30+ Service Manual V1.0

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Confidential and proprietary information contained in this repair guide is subject to change without notice.

Distribution, transfer, copy of any content or data in this document without the written permission of TCL is strictly prohibited.

TCL 30 & TCL 30+

T676H/K

Techno Black Muse Blue

Warning:

All features, functions, specifications, and other product information provided in this document,

including but not limited to the advantages, aesthetics, price, components, performance, availability

and capacity of the product are subject to change without notice.

TCL will not be responsible for any damage to the product, injury or other safety issue caused by the

result of repair by an unauthorized service provider, user repair or unprofessional product repair.

Any damage to the product resulted from an attempt to repair the product by any person or 3rd party

other than TCL authorized service provider will not be covered by warranty.

Service Manual TCL Communication Technology Holdings Ltd.

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TCL 30 & TCL 30+ Service Manual V1.0

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Confidential and proprietary information contained in this repair guide is subject to change without notice.

Distribution, transfer, copy of any content or data in this document without the written permission of TCL is strictly prohibited.

Content

1. Precautions ......................................................................................................................3

2. General Product Information...........................................................................................4

3. Maintenance preparation.................................................................................................5

3.1. Handset with at least 50% battery charges............................................................... 5

3.2. Supported SD card and SIM card, 5V2A Charger, Type-C USB Cable..................... 5

3.3. PC with below configurations to do software update by using PC tool. ....................5

3.4. Backup the user data before repairing. There are two ways below for your

reference…………………………………………………………………………………………..5

4. Factory Reset ...................................................................................................................6

4.1. Remove Google account before doing factory reset.................................................6

4.2. Factory Reset ...........................................................................................................6

4.3. Recovery mode.........................................................................................................6

5. Software Update...............................................................................................................8

5.1. Software update by FOTA.........................................................................................8

5.2. Software update by using Mobile Upgrade tool ........................................................8

6. Function Test with Support Centre...............................................................................11

7. Troubleshooting.............................................................................................................14

7.1. What should I do if my device reboots by itself?.....................................................14

7.2. What should I do if my device system lags or freezes?..........................................14

7.3. What should I do if my device cannot charge or charges slowly?...........................14

7.4. What should I do if my fingerprint unlock function works slowly or fails?................15

7.5. What should I do if my device’s battery drains under normal use? .........................15

7.6. What should I do if my device auto powers off?......................................................15

7.7. What can I do if my device heats up?..................................................................... 16

7.8. What should I do if my device cannot power on?....................................................16

8. Contact of TCL hotline and service centers ................................................................16

9. Explode View..................................................................................................................17

10. Split View ........................................................................................................................19

Service Manual TCLCommunication Ltd.

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TCL 30 & TCL 30+ Service Manual V1.0

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Confidential and proprietary information contained in this repair guide is subject to change without notice.

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1. Precautions

1.1 Use only demagnetized tools specifically designed for small electronic repairs, most electronic parts

are sensitive to electromagnetic forces.

1.2 Use only high quality screwdrivers when repairing products. Poor quality screwdrivers can easily

damage the heads of the screws.

1.3 Always use genuine spare parts. Parts from third party may not function properly or even cause

damage.

1.4 The parts below require calibration to ensure proper function after repair, please contact TCL

authorized Repair Center.

Sensors (proximity, fingerprint), dual camera, touch screen panel, speaker, motherboard and more.

1.5 The IPXX degree of protection cannot be guaranteed in the event of repair by the user or by an

unqualified person.

1.6 If the device suffered from water/liquid damage, you will have the option to have a repair, but this

may exceed the value of the device, depending on level of damage.

1.7 If you need detailed diagnosis, please contact TCL authorized Repair Center.

1.8 Do not remove, damage, heat, short circuit, or disassemble the battery. If you need to replace the

battery, screen or motherboard, go to a TCL authorized Repair Center for repair.

1.9 Before any repair, backup personal information and important data, and then proceed with the repair.

1.10 Many semiconductors parts inside the device are sensitive to electrostatic discharges that can

cause unrecoverable damages on the parts. Setup and stay in an Electrostatic Protected Area (EPA)

to avoid electrostatic discharge before opening the device for repair.

1.11 Before repairing the device, you must be absolutely certain that the device is turned off.

1.12 Repair the device in a safe/explosion-proof environment. If the device is damaged, emits smoke

or if you smell a burning odor, stop repairing/using the device immediately, use a fire extinguisher or

fire-proof box, and contact TCL.

1.13 When removing the back cover, be careful not to damage the product, especially the battery.

Recommended safety equipment: Glasses/Gloves/Mask, etc.

1.14 Before assembly, make sure that there are no screws or foreign objects around the battery.

1.15 Before assembly, make sure that there are no abnormalities before reattaching the back cover.

Service Manual TCLCommunication Ltd.

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TCL 30 & TCL 30+ Service Manual V1.0

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2. General Product Information

Features/Hardware

Description

Design

Dimensions: 164.54*75.24*7.74mm; Weight: 184g

System

TCL UI 3.0; Android 12

Processor

MediaTek Helio G37, 12nm; CPU: 4xA53 2.3GHz+4xA53 1.8GHz; GPU: IMG GE8320 680MHZ

Memory & Storage

4 GB RAM + 64 GB(T676H)/128GB(T676K) ROM; Support micro SD cards up to 1TB

Display

6.7'' (exactly 6.66'') FHD+, AMOLED, water drop notch

Rear Camera

50 MP main camera: AF, 1/2.76 ", 0.64μm, F1.85, field of view 74.4 °, 5P lens.

2MP macro camera: FF, 1/5 ", 1.75μm, F2.4, field of view 88.8 °, 3P lens.

2MP depth camera: FF, 1/5 ", 1.75μm, F2.4, field of view 85 °, 3P lens.

Front Camera

8 MP front camera: FF, 1/4 '', 1.12μm, F2.0, field of view 80.6 °, 4P lens

Battery

5010mAh (standard)

Connectivity

2G bands: GSM 850/900/1800/1900

3G bands: UMTS B1/2/5/8

4G bands: B1/3/5/7/8/20/28 /38/40/41

Wi-Fi Direct

Bluetooth 5.0, Type-C, NFC

Dual SIM model: 1 4FF Nano + 1 4FF Nano or 1 TF card

Single SIM card model: 1 4FF Nano SIM + 1 TF card

Sensors

GPS, A-GPS, Galileo, GLONASS

Accelerometer, E compass, proximity sensor, light sensor, fingerprint sensor.

Accessories

5V2A Charger, Type-C Cable, Quick Guide, SIM Card Pin, PSI

Service Manual TCLCommunication Ltd.

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TCL 30 & TCL 30+ Service Manual V1.0

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Confidential and proprietary information contained in this repair guide is subject to change without notice.

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3. Maintenance preparation

3.1. Handset with at least 50% battery charges

3.2. Supported SD card and SIM card, 5V2A Charger, Type-C USB Cable

3.3. PC with below configurations to do software update by using PC tool.

CPU: Equal to Pentium 1.6 GHZ or above

RAM: 4GB or above

Hard Disk: 10GB or above

Operation System: Win7/Win8/Win10

USB port

Internet connection with minimum internet speed of 8Mb/s

3.4. Backup the user data before repairing. There are two ways below for your

reference.

Method 1: Go to “Settings”->Touch “System”->Touch “Backup” (this function may appear

under different menus according to the type of device) -> Touch “Turn on” in the window

which has now opened ->Touch “Back up Now. You need to add your Google account

details first.

* App data, SMS text messages, Device settings, Call history, and Contacts will be backed up.

For more back up & sync help, please continue touch “Photos & videos”->touch the trigger

beside “Back up & sync”.

Method 2: You can back up your data to another phone via the “Switch Phone” app, and then

recover data when your phone has been repaired.

Swipe up in the home screen to find the search bar->enter “switch phone” and then touch

“search”->Touch to open “Switch Phone” on the search results page->Transfer the contents

by following the instructions.

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4. Factory Reset

Factory reset will reset your phone to restore it to its factory settings. This will delete all data

including files and downloaded apps. Please backup the user data before doing factory reset.

4.1. Remove Google account before doing factory reset

If Google account is not removed before doing the factory reset, it is not possible to setup the device

with another Google account at initial setup after the factory reset and it will require you to login your

previous signed-in Google account. It is recommended that you log out of the Google account.

You can go to “Settings”->“Account”->touch your google account->“REMOVE ACCOUNT”->touch

“REMOVE ACCOUNT”->touch “OK” to confirm.

4.2. Factory Reset

You can follow the below steps to perform factory reset when the phone is powered on.

Go to main menu -> Settings -> System -> Reset-> Erase all data (factory reset) -> Erase all data ->

Erase all data.

4.3. Recovery mode

How to use: Long press “Power” Key + “Volume up” key in power off mode to enter recovery mode.

When to use: When you cannot start your handset or when there is something wrong during switch

on or when cannot charge.

Consumer personal data format: It will format consumer data, and the memory and settings of your

product will return as released from factory.

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TCL 30 & TCL 30+ Service Manual V1.0

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Click-through steps：

1) Power off the device, long press “Power” Key +

“Volume up” key until the LCD lights on;

2) Press “Volume” key to select “Wipe data/factory

reset” and press “Power” key to confirm;

3) Select “Factory data reset” and press “Power” key

to confirm;

4) Select “Reboot system now” and press “Power”

key to confirm.

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5. Software Update

It is suggested to upgrade the handset software to latest version for better performance. Before upgrade,

please remember to backup your data and keep your phone fully charged.

5.1. Software update by FOTA

Firmware-Over-The-Air (“FOTA”) is a way in which the firmware of a mobile device is

updated wirelessly by the device’s manufacturer. Firmware runs in the background without

any input from the user, to make sure that the device’s hardware runs properly. Head to

your device’s “Settings”->“System”->“System Updates”->”CHECK FOR UPDATES”

5.2. Software update by using Mobile Upgrade tool

1) download the SW upgrade tool Mobile_Upgrade_S_Gotu2_v1.2.0 from website:

TCL 30: https://www.tcl.com/global/en/service-support-mobile/tcl-30.html

TCL 30Plus: https://www.tcl.com/global/en/service-support-mobile/tcl-30plus.html

2) Open the download Mobile_Upgrade_S_Gotu2_v1.2.0_Setup.exe file and choose the language,

install the tool according to the prompt.

3) After finish install the tool, click “Finish” and restart your computer.

4) Open the tool, choose the language, select the model “T676”,click “Start”->”Next”->Power off your

phone and connect it to computer via USB cable and waiting for loading software package.

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5) Click “OK” and disconnect your phone from USB cable when the tool pops up the prompt “Please

disconnect your device from the USB cable to proceed”.

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6) Click “Upgrade device” and connect your phone to computer, waiting for upgrade.

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