Phone restarts every minute, cannot enter recovery mode, Please help! topic

As I said, phone is restarting every minute, it cannot enter recovery mode by using 3 buttons. I've tried hard resetting, but whenever I press the button to erase it, it either does nothing or it restarts again. Also whenever I change some of the settings they revert after a restart. I've tried flashing some rooted roms with odin, and it said "pass" but phone still remained the same. I've tried flashing pit files, the three button recovery and all, but still nothing did any good... Is there any way I can fix this? Is there any way to find stock official images and install them without odin, like LG's software update kdz, or HTC official installer files? Is the phone just dead? Please help guys!