LG -D105 User Manual page 342

Message
Number not
allowed
Impossible
to receive /
send SMS &
photos
Files do not
open
No sound
Hangs up or
freezes
78
Possible causes
The Fixed dialling
number function
is on.
Memory full
Unsupported file
format
Vibration mode
Intermittent software
problem
Possible corrective measures
Check the Settings menu and turn the
function off.
Delete some messages from your phone.
Check the supported file formats.
Check the settings status in the sound menu
to make sure you are not in vibration or
silent mode.
Try to perform a software update via the
website.