For Handset; For Standard Accessories (Charger, Headset And Usb Cable); If Input The Following Codes On Handset, You Can; User Data Format Reset Introduction - TCL PIXI4-4.5 GOPHONE Service Manual

L1 Service Manual
General
Main L1 maintenance operations are as following:

2.6.1. For handset:

1) Warranty check
2) Function test
3) SW downloading
4)
Replacement of the defective handset.

2.6.2. For standard accessories (charger, headset and USB cable)

1)
Warranty check
2)
Functional check
3)
Replacement of defective accessories

2.6.3. If input the following codes on handset, you can:

Code
*#06#
*#2886#
*#3228#
End user format

2.6.4. User Data Format reset introduction

How to use:
Long press Power Key + Volume up key in power off mode to enter recovery mode.
Rev.
1.1
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Display IMEI number
Enter Auto Test mode
Check current software version
Long press volume up key +power key
4060A Level 1 Service Manual
TCL
Communication Ltd.
Description
Page
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