So my friends phone has been rooted and runnin g S.S 3.1 for about a week not with no issues. well he called last nite saying his phone was on table and he picked it up and it was off and couldnt get it back on unless he pulled battery. the first time he pulled battery ikt got stuck on the boot animation then he rebooted and it worked. well since then his phone has shut off 2 more times having to pull battery to get it back on.... anyone know what this issue could be? i thought maybe the kernel but it ran fine for a week.