LG Optimus Dynamic L38C User Manual page 12

9. Internal antenna
DYNAMIC TM
LG OPTIMUS has an internal antenna. Be careful not to scratch or
damage the back of the phone, as that causes loss of performance.
lower part of the phone where the antenna is located. Doing so may affect
10. When the screen freezes
operate it:
Remove the battery, reinsert it, then turn the phone on. You can also press
and hold the Power/Lock Key
still does not work, please contact the service center.
11. Do not connect your phone when you turn on/off your PC.
LG L38C | User Guide