Afaik back to stock ROM is only possible with Odin or Heimdall.Awesome! I've been reading up on stuff a bit and it actually seems doable. I suppose you can even use ADB and TWRP to restore the previous state of the table?...
Aahhh... Could it be this one?
https://forum.xda-developers.com/ga...recovery-unofficial-twrp-3-1-1-0-t3635803.... .
If you search more you will find TWRP 3.2.3-0 and even 3.3.1-0.
Tried both but with the first I could save EFS with the last not.