Upgrade Samsung Galaxy S2 Plus GT-I9105 to official 4.2.2 Update I9105XXUBMH4 | Android Firmware Upd
Extract or unzip the firmware, use winzip, wirar, 7zip Run Odin flasher on your PC desktop Turn OFF the Galaxy S2 plus or Remove the battery and put it back again Put your device into Download MODE (Home + Volume Down + Power) Plug the phone to PC using ....