Service Manual
TCL Communication Technology Holdings Ltd.
Rev.: 1.0
TCL 30 5G _T776H _H1 Service Manual V1.0
Page: 5/20
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.
3
Maintenance preparation
3.1 Handset with at least 50% battery charges
3.2 Supported Micro SD card and SIM card, 9V2A 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
:
You need to add your Google account details first. Go to “Settings”-> “System”-> “Backup” ->
Touch “Turn on” in the window which has now opened ->Touch “Back up now.
*
App data, SMS text messages, Device settings, Call history, and Contacts will be backed up.
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” ->Transfer the contents by
following the instructions.
