trying to root a friends gs2 i777 and after using odin to run the tar file, it started to reboot and has been stuck on the samsung logo for about 30 minutes now. i was just told that he is still on froyo so i think that had something to do with it but he is no longer using an at&t sim card so it wouldnt let him upgrade to 2.3 over the air. but i am stuck at the logo screen and tried to reboot back into stock recovery and it gets stuck at the logo still. please someone help