16.
RF Network
SN. Possible Cause
Validation steps
Action
1
RF Network cannot
searchable
SW issue
Flash the handset with latest SW
RF parameter issue
Back up and copy RF parameter
RF antenna issue
（
rear
housing
）
Re-assemble or Change rear housing
RF antenna issue
（
SUB
PCBA
）
change SUB PCBA
Some dust with RF Slot
Clean it
RF Coaxial line issue
Re-assemble or Change it
RF connector issue
（
PCBA
）
Clean/ re-assemble
PCBA fail
Change PCBA
RF antenna
Slot
RF Coaxial
line
RF
antenna
RF
connector
RF antenna
Slot
