My Galaxy S II X will randomly reboot itself, also if I try to turn on/lock my screen it will turn off. it vibrates constantly while off. I've taken the battery out, plugged it in with no battery and it still vibrates. Anyone facing this issue?
Hasan, you might want to check if a recently installed app may have caused the problem. Remove the app and see if the problem persists. If that doesn't resolve the problem, a factory reset is your next step. There isn't enough power to run the S2x on the battery charger alone, the phone will vibrate alerting you that there is no battery present.