Service Manual
TCL Communication Technology Holdings Ltd.
Rev.: 1.0
TCL 30 5G _T776H _H1 Service Manual V1.0
Page: 6/20
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.
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. Follow
the below steps to remove your Google account from the device.
Y
ou can go to “Settings”->“Users & accounts”->touch your google account->“REMOVE ACCOUNT”-
>touch “REMOVE ACCOUNT”.
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)”->Touch “Erase all
data” in the open window ->“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.
