Disassembly:

1. Start the printer and connect it to the mobile app. Preheat the nozzle.
2. Retract the filament or cut the filament if the extruder cannot retract it.

3. Turn off the printer.
4. Unlock the Type-C cable and the Teflon tube buckle, then press the pneumatic joint to remove the Teflon tube.

5. Use a 2.0mm hex wrench to unscrew the Type-C cable fixing bolt.

6. Use a 2.0mm hex wrench to unscrew the four fixing bolts on the back of the print head and remove the print head.

Installation:

1. Install the new print head and use a 2.0mm hex wrench to tighten the four fixing bolts on the back of the print head.
2. Tighten the Type-C cable retaining screws with a 2.0mm hex wrench.
3. Insert the Teflon tube into the pneumatic joint.
4. Turn on the printer, connect to the mobile app, enter "Automatic Leveling," and click to start automatic leveling.
   1. Reference: How to Auto Level the M5C Print Bed

If the above steps do not resolve the issue, please get in touch with us at us.