Did it get wet? Good drop maybe? Ive killed a friends phone by taking it for a swim and it was actin crazy like that before dying. If you have fastboot you can try flashing velocity from the 2.2 root guide. That would allow you to do a wipe and reflash from the pc. I think you can restore and such from within recovery via adb, i only say this because ive gotta an error trying to restore telling to run nandroid-restore.sh or something like that. Vauge i know but thats all i got. If you dont have fastboot but the phone still turns on try LGNPST. Itll take it back to stock V6 and if neither LGNPST or fastboot work then its probably hardware
hmm i have dropped it a long time ago (the screen is cracked pretty bad) but this has never happened before. i will try that and post back later. thank you very much!