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104
Message Possible causes Possible corrective measures
The screen
does not turn
on when I
receive a call.
Proximity sensor problem
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.
No sound Vibration mode
Check the settings status of the sound
menu to make sure you are not in
vibrate or silent mode.
Hang up or
freeze
Intermittent software problem
Remove the battery, insert it again and
switch on the phone.
Try to perform a software update via the
website.
Phone locked
and does not
function.
Restarting the phone
1. Turn the phone off.
2. Remove the battery cover.
3. Install the battery.
4. Close the cover.
5. Turn the phone on again.
Troubleshooting
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