What???
in italy we say... "vuoi anche una fetta di culo?"
C'mon,
enter in testmode with a FAT32 formatted (cluster16k) sd and "supertestmode file" on it, put a fake PRG.FLG file into the USER folder.
It will force the reading from PRG1, and you'll boot again in normal mode.
There's no a backup program, only gramine salis