"Why won't my Samsung Galaxy S II charge?"에 답변What i am going to tell you might be a little bit crazy, but it works for me, and I hope it works for u too, cuz i understand the struggle of having a non-charging phone! So, the solution is that you let your phone somewhere safe( with or without any battery percentage) , forget about it for like 2 - 3 days, plug in the charger and see if it works. If not, probably you might want to remove the SIM card and the SD card as well, probably the battery too, and store them somewhere safe, leave the phone for 2-3 days as mentioned. Hope it works for you!