I loaded a build of ICS onto my friend's phone. She then decided she didn't like it and wanted me to restore it to factory. I tried loading the original software back on using various different "official" samsung builds, but the phone is now stuck in a boot loop. The vol up+ power button combo no longer brings up a boot menu; it has "forced upload by key pressing". The only way I can load anything onto using odin is by having the battery out and connected thru usb (then for some reason the phone lets me put in a custom OS).
Idk if it's just the bootloader or what. Please help. I can't afford to buy a phone that's not even mine!