LG 1LGE510N User Manual page 140

Troubleshooting
Message Possible causes
Impossible
to receive /
Memory full
send SMS &
picture
Files not
Unsupported file format
opening
SD card not FAT16, FAT32 file system
working supported
The screen
does not turn
Proximity sensor problem
on when I
receive a call.
138
Possible corrective measures
Delete some messages from the phone.
Check the file formats that can be supported.
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
that the area around the proximity sensor is clean.