So...I finally got into sysUpdater.
But now it tells me:
"Getting CIA file information..."
"Updates installed. Rebooting in 10 seconds..."
Wtf? I didn't even press A! I started the app using the touch screen.
It seems like it hangs there. I already waited 5 minutes and nothing happens.
Also the wireless lamp has stopped blinking.
I guess my console is fucked? :/
Not necessarily, try manually restarting it is all you can do at this point I guess. Unless the program has changed you wanted to press 'Y' to downgrade, not update. Potentially not good.