In our description database there are 3 solutions for performing hard reset for Samsung Galaxy S II HD LTE.
Choose the first method and follow the steps to perform a hard reset. If the first solution does not work, try the next method.
Please remember! Hard reset will delete any and all data your device contains; like pictures, contacts, messages, apps etc. Everything. Samsung Galaxy S II HD LTE device will be brought back to the same configuration as that of a brand new device.
1. First of all, press-hold the Power button.
2. Enter the *2767*3855# code into the phone. Press Call button to confirm.
3. Wait for your device to reset & restart. That is all.
1. Press-hold the Power button until the phone turns on.
2. Select Menu > Settings > Backup & Reset > Factory data reset.
3. Continue to Reset device > Erase everything. Voila, the factory reset is over.