I am reading around at the moment, and finding this to be an issue on many of LG's devices. An issue only it seems particular individuals are effected by, mostly rooted users who had an improperly rooted device.
The only 2 solutions I have found so far that fixes the phone is by a small trick or by doing a factory reset.
Possible Solution 1. Unplug the battery, wait 30 seconds. Hold the power button down while re-inserting the battery. See if the phone boots normally after that. If not. Continue to solution 2.
Definite Solution 2. Unplug the battery, wait 30 seconds. Re-insert the battery, then hold the volume up button + the power button at the same time to bring up a sudo recovery menu asking you to hard reset your phone. Accept and reset it.
Hopefully this helps. If not try this..
Lg Flash - LG Cell Phones Blog
The only 2 solutions I have found so far that fixes the phone is by a small trick or by doing a factory reset.
Possible Solution 1. Unplug the battery, wait 30 seconds. Hold the power button down while re-inserting the battery. See if the phone boots normally after that. If not. Continue to solution 2.
Definite Solution 2. Unplug the battery, wait 30 seconds. Re-insert the battery, then hold the volume up button + the power button at the same time to bring up a sudo recovery menu asking you to hard reset your phone. Accept and reset it.
Hopefully this helps. If not try this..
Lg Flash - LG Cell Phones Blog