I have installed a generic BLtouch on a Creality Ender 6. I have updated the firmware from the website, and when I try to level the bed in all five points, it does it perfectly in four of them, but in one it leaves the head at two or three cm below. Can someone guide me at least to find out if it could be due to incorrect wiring, modifications that I must make in the firmware, or malfunction of the device? The original cable was modified to fit the sprayboard. Actually, when two cables came with different ends, one long and one short, I joined them together respecting the colors. From right to left on the board, White-black-yellow-red-green. Thanks!