I had Jelly Bean and downloaded the official KitKat update from XDA, it installed correctly but on bootup it seemed to be in a bootloop, left it alone after a while and it booted up on KitKat. Seems great right? Now I get random reboots and want to go back to JellyBean so I downloaded the older firmware and tried to flash it with RSD Lite. At first I got an error about getvar, googled it and was told to delete the getvar line from the xml and try again, did that and now I keep getting an error saying "Failed flashing process. 1/22 flash partition "gpt_main0.bin" -> Phone return failed" what should I do at this point? Can I not flash from KitKat back to JB or even ICS? Edit: Forgot to mention this is a 100% Stock, never been rooted phone.