Samsung Galaxy S III hard reset

Samsung Galaxy S III hard reset

reset Galaxy S3: PRESS AND HOLD VOLUME UP + Home Button + Power
or
If your device is frozen and unresponsive, press and hold  for 8-10 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select
Settings → Privacy → Factory data reset → Reset phone → Erase everything.
Use this method to hard reset your Samsung Galaxy S II: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.