Hi I have a serious problem with my galaxy s2 that stack on startup. I have put only the official android update, several years ago, deployed from Samsung(jelly bean).I tried flashing with Odin,got success message but nothing changed.the strange is that I can only go into setup mode when it's on charging mode and only through electricity socket and not through USB cable. Any ideas would be much appreciated, I don't know what other alternatives can I try, i have already try reset option, but got the same problem.
Is there any possibility buying a new battery to solve the problem?
Thanks a lot.