LG Optimus F6 Start Manual page 12

Connect the USB Adapter and USB cable (as shown on
1
the previous page).
Plug the USB cable (as shown on the next image) into the
2
phone's Charger/Accessory Port.
NOTE
The battery must be fully charged initially to improve battery
lifetime.
NOTE
Your phone has an internal antenna. Be careful not to scratch or
damage this rear area, as that will cause loss of performance.
When charging your phone with a fully discharged battery, the
keypad LED will briefly flash indicating charging is occurring
in a mode designed to prevent battery damage. The blinking
will stop and normal charging will commence once a sufficient
minimum charge has been established.
10
Internal
Antenna