Before you select if you want automatic or manual leveling, the printer runs a routine to determine the Home Z-axis at the center of the bed.
This starts OK, then the level goes to maximum (of the screw) and stops. Click on the + or - button for the Z-axis does nothing. I tried to flash the firmware again (I flashed it previously to fix the auto-leveling stalled as recommended by Creality) with no effect.
As you can see in the image above, the bed has lifted up the print head. That is repeating in printing, leaving scratch marks on the bed.