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Troubleshooting
Message
Possible causes
SD card not
FAT 16 file system
working
supported only.
The screen
does not
turn on
Proximity sensor
when I
problem.
receive a
call.
Vibration or silent
No sound
mode.
Hang up or
Intermittent
freeze
software problem.
90
Possible Corrective Measures
Check SD card file system via
card reader or format SD card
using phone.
If you use any protection tape
or case, check if it is covering
the area around the proximity
sensor. Make sure that 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 battery and re-insert
battery.
Turn on the phone.
Try to do a software update
service via WEB site.
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