LG T375 - Number Permitted Issues; SMS;Picture Transfer Failures; File Opening Errors; Screen Issues During Calls

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Message Possible Causes
Possible Corrective
Measures
Number not
permitted
The Fixed Dial
Number function
is on.
Check settings.
Impossible
to receive/
send SMS &
Picture
Memory full
Delete some existing
messages in the
phone.
Files not
open
Unsupported file
format
Check the file format
that can be supported
The screen
does not
turn on when
I receive a
call.
Proximity sensor
problem
If you use any
protection tape or
case, check it is
covered the area
around proximity
sensor
Make sure that the
area around the
proximity sensor is
clean.
Hang up or
freeze
Intermittent software
problem
Take out the battery
and insert battery.
Turn on the phone.
Try to do software
update service via
web site