L2E Repair Document
TCL
Communication Ltd.
Rev.
4017A_D_E_F_X_S Level 2 enhance Repair Document
Page
1.0
7/54
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8) Gap
External physical damage relating to abnormal use, like front case and frame opened
9) Others
Damage caused by disassembly ,wrong part assembly, loss of components
Use in abnormal environment like high temperature causing plastic melts
2.3 Pretest
1) Check that the SIM card is set correctly.
2) Power on the cell phone.
3) If the cell phone asks to input NCK code, this means it is SIM locked and can only be worked
with dedicated SIM card. Use the correct SIM card.
4) Enter the phone code if necessary.
5) After the phone power on, test step by step with the auto test code:
Press *#2886# in dial screen and then you will see the interface displaying the SW version. Select
“Auto” to start the auto test, or select “MANU” to do the MMI test manually.
If one of the tests failed during
“Auto” test mode, it will show “Text[X] xxx failed. Restart?”, press
“YES” to retest, press “Next” to go on next test and press ”NO” to finish test.
1) Corrosion
Corrosion on the USB connectors, SIM connectors, and other metal surfaces
2) Hole