lokhor: My wife's S3 is having problems with locking up frequently and the battery life is terrible (like 1hr screen time before dying). I have done a full wipe and reflashed a stock rom. Unfortunately it's now running 4.1.2 so doesn't seem to be dying rapidly. Is there a way to force it and get a repair?
A few people over at XDA have suggested flashing back to 4.0.4 or 4.1.1 and let it die. That is, if you have the affected chip.