In our description database there are 3 solutions for performing hard reset for Samsung Galaxy S II 4G I9100M.
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 4G I9100M device will be brought back to the same configuration as that of a brand new device.
1. Turn off the phone by holding the Power button.
2. Press'n'hold these three buttons simultaneously: Volume Up, Power, Home. Let go of them when the Recovery Mode appears.
3. A new menu should now open. From it, select the Wipe data/factory reset option. To do so, use Volume buttons to scroll the menu and Power button to choose the option.
4. Now select, in the same way as above, Yes and Reboot system now.
5. Done!