It states in the guide…
Once lowered by approximately 1cm, press the Home Z button to home the
Z axis. The hot end will approach the heated bed and should stop around a
centimeter above the surface of the heated bed
Is this right??? Are you sure you dont mean a millimeter? I only ask because a Centimeter (which is 10mm) is quite some distance from the bed, certainly not a height which is just above a piece of paper.