Verify a clean swith nand

[visianary]

Hello,

I was just curious as to whether or not it was possible to verify whether a nand back up is clean or not. I recently discovered an alleged way to factory reset your switch after it was cracked to OFW. So i was wondering if there was a way to verify a clean nand so i could possibly use the nand backup after restoring my switch since I unfortunately forgot to make one initially.

 

[Qubs]

we (cfw/homebrew users) currently dont know what exactly makes the big n go "YoU BaNnEd" so there isnt a real way to verify a "clean nand"
however a factory reset should get you closest to your desired "clean nand" as it delets every userreccords