LG E612g Guia Del Usuario página 18

Important notice
10. Hold your phone upright
Hold your mobile phone vertically,
as you would a regular phone. The
LG-E612g 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.
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11. 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. If
it still does not work, please contact
the service center.