Calibration pointers needed

Commarker b4 20w running LB 1.7.03. Need help calibrating axis. A 20x20mm square prints at 11x11mm. Way off.

Do not see where to calibrate. Other postts say go to machine setting under edit bit I do not have that option in menu.

Unknown firmware.
Try going to console window and typing $$ then enter and copy/paste the output here.
You have nothing like this in your machine settings?