LG P970 User Manual page 164

Troubleshooting
Message Possible causes
SD card not FAT16, FAT32 file system
working supported
The screen
does not
come on Proximity sensor problem
when I
receive a call.
No sound Vibration mode
Hang up or
Intermittent software problem
freeze
74
Possible corrective measures
Check SD card file system via card reader,
or format SD card using the phone.
If you use any protection tape or case,
check to see if it has covered the area
around the proximity sensor. Make sure
the area around the proximity sensor is
clean.
Check the settings status of the sound
menu to make sure you are not in vibrate
or silent mode.
Remove the battery, reinsert it and switch
on the phone.
Try to perform a software update via the
website.