Hacking Switch can't read carts after update to 9.0.1 (not a nogc error)

[BtheDestroyer]

I accidentally pushed "update" instead of "start software" in stock fw 9.0.0 when booting Ring Fit Adventure off a cart, then after my switch restarted into Hekate (5.0.2) it gives the "cannot read cartridge" error (basically what you'd see if nogc patch was applied to CFW) despite the fact that I'm on stock with the patch disabled. Anyone have any clues as to what's happening or how to fix it? I really don't want to have to go and buy another switch just to play carts.

EDIT: I got helped through the Nintendo Homebrew Discord. I had to disable AutoRCM, go through the default stock bootloader, then reapply AutoRCM. It was an issue with the gamecart slot firmware not being updated completely.