Hi all! A friend of mine give me his Galaxy Ace 2 because it's not working. The phone do app upgrades at each startup, after a few seconds gmail has stopped message appears, after few time I got other message like this related to other apps and then the phone restart itself! I've unistalled supersu or other apps but after the restart they are still there! I've tried flashing stock rom or other roms with odin, I got pass but nothing changed on the phone! I've tried formatting system, data and cache in recovery but the system startup always in the same way! Seems that it's someway locked, everything I do has no effect! Do you ave any suggestions?