I wanna try it, but I heard that you can't downgrade from 7.0.1 to 5.1 (I believe that's the FW I have).
Also, would anyone happen to explain this a little to me in laymans terms? https://gbatemp.net/threads/firmware-version-inspector-get-fw-version-from-nand-dump.515308/
It's a FW version...