Originally Posted by Driftking
so i downgrade it with my e3 flasher to 2.80 then i update it via usb to 3.55?
You use the flasher to flash a patched backup of your nor. Then downgrade in Factory Service mode, to a no check cfw 3.55.
Then you have to dehash the syscon checks.
You can follow the guide below. It will guide you through the process.