LG E730 User Manual page 538

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9. Hold your phone upright
Hold your mobile phone vertically, as you
would a regular phone. The LG-E730 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.
10. 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 centre.
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