Loosen the 2 screws securing the PEI limit stop at the front right side and the back side of the printer using the 2.0 mm Allen key.
Unplug the cables and connection cables on the chamber interface board at the back right side if the printer. Loosen the eight screws securing the power box cover using the 2.0 mm Allen key.
Remove the power box cover. Lift the outer side of the cover and remove it.
Loosen the two screws securing the chamber interface board holder using a 2.5 mm Allen key.
Unplug the cables under the chamber interface board. Loosen the four screws securing the chamber interface board using a 2.0 mm Allen key. Remove the old chamber interface board.
Prepare the new chamber interface board. Align the chamber interface board with the screw holes and put it in the installation position. Tighten the four screws securing chamber interface board using a 2.0 mm Allen key.
Plug the cables and connection cables under the chamber interface board according to the label information. Align the chamber interface board holder with the screw holes and put it in the installation position. Tighten the two screws securing the chamber interface board holder using a 2.5 mm Allen key.
Prepare the power box cover. Put it under the heated bed by placing sideways.
Align the power box plate with the screw holes and slide the plate to the installation position.
Note: Organize the ribbon cables connected to the chamber interface board. Do not leave them under the cover plate.
Tighten the 8 screws securing the power box cover using a 2.0 mm Allen key. Insert the cables and connection cables into the chamber interface board.
Note: The front and rear sides are fixed with long screws and the right side is fixed with short screws.
Loosen the 2 screws securing the PEI limit stop at the front right side and the back side of the printer using the 2.0 mm Allen key.
Plug in the power cord and power on the printer. Select "Prepare - All (Homing Button) on the touchscreen. The printer starts homing process. The printer is ready for use after working normally.