I've got a droid razr m xt907. Recently it suddenly wouldn't boot. I tried flashing it using house of moto. At that point I didn't realize that it was an xt907 - I only knew it as a droid razr m. Unfortunately, the instructions for the house of moto said that if you have an xt907 you have to overwrite files in the tools folder with other files (that they supplied). I din't do that and now the phone will only go to fastboot. When I try to flash it with the latest kitkat (15.1) using rsdlite, it gives the error that it failed on gpt.bin Almost everyone tells me there's no way to fix it. Would appreciate if anyone knows a way.