LG P720h User Manual page 145

Message Possible causes
Impossible to
receive / send SMS Memory full
& picture
Files not opening Unsupported file format
SD card not FAT16, FAT32 file system
working supported
The screen does
not turn on when I Proximity sensor problem
receive a call.
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 if it has covered the area around the
proximity sensor. Make sure that the area
around the proximity sensor is clean.
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