Hardware Misc DSi NAND integrity?

[KirgoPlayer007]

Hello! Is there a way to check for my NAND's integrity (will it brick if let's say as an example I uninstall Unlaunch?). 3 years ago I wanted to install DSiWare to my DSi without modding my console (I used this video , but changed some small things for it to work on my EUR console), and I am very sure the actions I did were made in SysNand.
So if in the end there was no potential damage how could I flash a clean NAND on my DSi? (just for my "paranoia")

 

[Pk11]

Mhh yeah TWLnf is.. not great, you can fix its main issue at least (not 100% sure if it causes any other issues) by just running NTM and selecting to fix the fat copy mismatch. Other than that the best you can do is just make a fresh NAND backup and uninstall Unlaunch in no$gba, I believe this is a more or less reliable indicator of if it'll brick on hardware, but this theory has not been extensively tested so I'd still be cautious.