L1 Service Manual TCL Communication Ltd.
2002D
Level 1 Service Manual
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3.6.2. For standard accessories (charger and USB cable)
1) Warranty check
2) Functional check
3) Replacement of the defective accessory
3.6.3. Engineer functionalities
Input *#06# in the dial pad
Input *#458# in the dial pad
Check current software version
Input *#09# in the dial pad
Enter Auto Test mode (refer to 3.13)
Long press “#” key + “power on” key
3.6.4. User Data Format reset introduction
i. How to use?
Press “#” key + “Power on” Key at power off mode to enter user data format mode.
You will be asked “Restore factory settings” After you select “OK”, the sequence will be entered
with reminder “Please wait.” The phone will auto switch on when reset finishes. Please do not
manipulate the phone or remove the battery during this process. Or you can press “cancel” to
exit this reset interface and power on the phone.
ii. When to use?
If you cannot start your handset
Or when you start your handset, there will be something wrong with it, like cannot charge or
cannot charge normally.
Iii．What will happen when use “End User Format” function?
It will format FAT area, and your handset will go back to factory default setting. Whatever
saved or set in the handset will lose.
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