LG Optimus L3 E400 hard reset If you have forgotten PIN or Password
All data will be lost! Remember to back up any important data before doing a hard reset.
When the phone is turned off, press and hold the Home key + Volume down key + Power key for over 10 seconds. When the screen shows the LG logo, release the Power key.
After the screen shows the hard reset screen, release the other keys.
Leave your phone for at least a minute while it performs the hard reset, then your phone will be turned on.