just look up switch 5.1.0 universal exfat and it'll come with a guide. I don't want to link it in case it's not legal but google will help.I'm sorry, I'm a complete noob. Can you give some directions as to how to do that?
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idk of anything to partition the nand... as far as I know if you do that there's no fix. the 5.1.0 thing I mentioned does flash over your nand so it may be your best option. I know it does work bc I had to use this method when bricking my day one switch with no nand backup.I don't care much for prodinfo, I just want to delete the partition tinfoil created on my nand