Loosen the 13 screws securing the back cover using a 2.5 mm Allen key.
Lay the back cover flat. Cut off the cable ties securing the cables using a pair of diagonal pliers.
Using labels or label ties, mark the cables on the adapter board.
Disconnect the cables from all the ports on the adapter board.
Loosen the four screws securing the adapter board using a 2.5mm Allen key. Remove the old adapter board.
Prepare the new adapter board. Align it with the screw holes and put it in the installation position. Tighten the four screws using a 2.5 mm Allen key.
Insert the ribbon cables into the adapter board according to the label information.
Secure the cables using cable ties.
Align the back cover with the screw holes and put it in the installation position. Tighten 13 screws using a 2.5 mm Allen key.
Power on the printer. Observe whether the indicator of the air purifier is on.
Select System - Light On on the touchscreen.
Select Tool - Calibrate - Next on the touchscreen. When the LCD screen turns on, the cooling fan rotates.
Power on the printer. Select Tools - Manual - Calibration. The printer is ready for use if the Z axis returns to homing position.