3.
Touch panel
SN. Possible Cause
Validation steps
Action
1
TP not working
SW Issue
Flash the handset with latest SW
TP issue
Clean TP connector/Re-assemble TP
TP issue
Re-solder TP FPC/ change TP
（
NA
）
PCBA issue
a)
Clean TP connector/ Re-assemble
TP
b)
Change PCBA
4.
Fingerprint
SN. Possible Cause
Validation steps
Action
1
Finger print Failure
SW Issue
Flash the handset with latest SW
Finger print Failure
Re-assemble / Change Finger print
SUB PCBA Failure
Re-assemble / Change SUB PCBA
Main FPC Failure
Re-assemble / Change Main FPC
PCBA issue
Re-assemble / Change PCBA
TP/LCD
TP
connector
