2.
Display issue/No display
SN. Possible Cause
Validation steps
Action
1
No display
SW issue
Flash the handset with latest SW
LCD issue
Clean LCD connector/Re-assemble
LCD/Replace it
LCD issue
Re solder LCD connector/ change a new
LCD
（
NA
）
PCBA issue
Clean LCD connector
）
/Re-assemble to
PCBA
2
Colored screen
LCD issue
Re-assemble LCD/Replace it
3
Dark screen
LCD issue
Re-assemble LCD/Replace it
LCD backlight circuit issue
Change PCBA
LCD
connector
LCD/TP
