LG LGP999 - Manual (Page 15)

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9. Unlock screen when using data connection
Your screen will go dark if untouched for a period of time when using a data
connection. To turn on your LCD screen, just touch it.
10. Do not connect your phone when you power on/off your
PC
Make sure you disconnect your phone from the PC as it might cause errors
on your PC.
11. Hold your phone upright
Please hold your phone straight and upright, as with a normal phone. The
LG P999 has an internal antenna. Be careful not to scratch or damage
the back of the phone, as this will cause a loss of performance. While
making/receiving calls or sending/receiving data, try to avoid holding the
lower part of the phone where the antenna is located. This may affect call
quality.
12. If the screen freezes
If the phone does not respond to user input or the screen freezes:
Remove the battery, insert it again and turn on the phone. If it still does
not work, please contact customer service.
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