Anycubic S firmware crash

Hi all,

I tried to update firmware from 1.2 to 1.5 from anycubic site. After update and restart I tried to align the bed, went to go to home menu and print head immediately went to the right, crashed into the right pillar and got stuck there while making a horrible screeching noise.

I did try reading up on knutwurst vs davidramiro / marlin etc, but I then I realized that I just don't have a spare life to invest into this thing.

While I do applaud all of you that successfully invested your time into 3D printing, I would very much appreciate a hint if it's even possible to flash this anycubic back to stock function, or if the micro step motor is already ruined.