I am completely new to 3D printing and have tried to load many firmware builds, but my printer will only accept the original 2.0.6 which does not allow a negative z axis offset. Auto Home always leaves about a 20mm gap with no way to adjust the bed up. Is there a .bin file I can download that will work with the Ender-5 Pro with 4.2.2 board and BL Touch with all 5 wires from the BL Touch connected directly to the 5 pin header for it. Do I need to connect the black and white wires to the z-stop header or what?