I think you need two versions of this tool (
same for matt's) for xt925 and xt926.
Whilst it appears to work fine for both devices, if you restore the stock 4.1.2 firmware, it flashes the Verizon gpt_main0. If you are on a xt925 this breaks RSD lite when trying to restore standard xt925 stock roms, as the partition_signed now throws a GPT error, and you can't downgrade it or change it.
This also seems to prevent the installation of Custom Roms once it's done.
Does anyone know how to flash the partition_signed over gpt_main0 once its been done? As now I think i have to use custom Verizon roms and manually change the modem and fsg files.
edit: Matt's doesn't appear to include the gpt_main0 file. Mr Parkinson, i would strongly suggest removing it from yours and the xml file.