LG E610 Optimus L5 Quick Reference Manual page 183

Device components
Earpiece
Proximity sensor
Home key
Return to the Home screen from
any screen.
Back key
Return to the previous screen.
NOTE: Proximity sensor
When receiving and making calls, the
proximity sensor automatically turns
the backlight off and locks the touch
screen by sensing when the phone is
near your ear. This extends battery life
and prevents you from unintentionally
activating the touch screen during calls.
Power/Lock key
• Switch your phone on/off by pressing
and holding this key.
• Short press to lock/unlock the
screen.
Menu key
• Check what options are available.
WARNING
Placing a heavy object on the phone or
sitting on it can damage the LCD and
touch screen functions. Do not cover
the LCD proximity sensor with protective
film. This could cause the sensor to
malfunction.
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