L1
Service
Manual
TCL
Communication Ltd.
Rev.
9030G/9030Q/VFD1400 Level 1 Service Manual
Page
1.1
11/26
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2.5.2. For standard accessories (charger, headset and USB cable)
1)
Warranty check
2)
Functional check
3)
Replacement of defective accessories
2.5.3. If input the following codes on tablet, you can:
Code
Description
“Settings” -> “About tablet” ->
“Status” -> “IMEI information”
Check IMEI number
Open “Calculator” application, and
input “0x0-0+=”
Enter MMI Test mode (refer to 2.12)
o
pen “Calculator” application, and
input “1x1-1+=”
Check SW version
End user format
Long press volume up key +power key
o
pen “Calculator” application, and
input “9x9-9+=”
Enable the port
(The port will be locked after upgrading the
software.)
2.5.4. User Data Format reset introduction
How to use
:
long p
ress “Power” Key + “Volume up” key in power off mode to enter recovery mode.
When to use
: If you can‟t start your handset or when you start your handset, there will be something
wrong with it, like can‟t charge or can‟t charge normally.
What does it do when you use End user format function
: it will format end user area, and your
handset will come back to factory model, everything you save or set in the handset (except SIM card)
will be lost.
Detail steps
：
1. Long press
“power” key + “volume up” key, and enter the Android system recovery mode.
