Gotta say, im sometimes stupid as fuck, i got rid of my old switch, bought a new one and fucked up (AGAIN) at the 90nds part, i was on cfw without having started anything and those 10 seconds were enough to trigger a firmware download, the only logs i had on the system at the time were standard system errors - now im afraid as fuck that i accidentally (AGAIN) might have triggered a console ban - LOL.
Yes i know, normally i would say "so fucking what?" since i only use the system offline, but it fucks with my plan to revert back to the original NAND should i decide to sell the system one day and wanting to keep the Switch non-banned.
Im really tempted to just revert the nand and update the system officially to find that out, fucking OCD.
look if you haven't done anything apart from boot CFW then it should be fine to restore the clean nand and start again with 90dns enabled
You can check out drax's thread on banning for more information though