It's very frustrating that i cannot save any logs because i have to restart the phone in order to use it, and by then the problem is gone. I eliminated all the apps, so its not an app causing this. And its absolutely nothing specific that i'm doing to it. One time i just woke it up, unlocked it, looked at the clock, locked it, and when i went to wake it up again after 2-3 minutes, nothing, gone, completely unresponsive. Also, if i plug it in it makes the sound that its charging. Waiting does nothing, i tried to let it be for more the half an hour and its still the same. And it goes without saying battery is draining a lot faster when its in this 'dead' mode.
The rom with which it happens is the pre-rooted S7710XXAMB6_S7710OXEAMB3-20130713 stock rom.
Anybody has any clue?