Q4202 L2 Service Manual
Main FPC connect fail
Change Main FPC connect
Moto issue
Change Moto
Main FPC fail
Change Main FPC
Main PCBA issue
Change main PCBA/Refer to L3 repair
12
:
WiFi/BT /GPS not working
NO.
Description
Reason
Solution
Software issue
Update software
antenna fail
Change antenna
PCBA issue
Change PCBA/Refer to L3 repair
13
:
RF (SIM) Network issue
NO.
Description
Reason
Solution
1
4G can not
4G did not open
Open the 4G
Main FPC connect
Vibrator soldering
Antenna
connector