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To disconnect your phone from the computer:
Open the Notifications panel and touch Turn off
USB storage (twice) to disconnect your phone from
the computer safely.
7. Hold your phone upright
Hold your mobile phone vertically, as you would
a regular phone. The LG-E739 has an internal
antenna. Be careful not to scratch or damage the
back of the phone, as this may affect performance.
While making/receiving calls or sending/receiving
data, avoid holding the lower part of the phone
where the antenna is located. Doing so may affect
call quality.
8. When the screen freezes
If the screen freezes or the phone does not respond
when you try to operate it:
Remove the battery, reinsert it, then turn the phone
on.
OR
Press and hold the Power/Lock Key for 10
seconds to turn it off.
If it still does not work, please contact the service
center.