What an incredibly rude and condescending comment. This thread was just what I needed to revert the 18.0 update
Some modifications:
SystemRestoreV3.te in the Tegrascript README (just google the new script name) is what is now needed instead of systemRestore.te.
You can find older firmwares...
Nuh it was a joke, but I used to bite my nails when I was young, but when I started doing construction work and seen what crap was under my nails, I stopped.