- No filament detected, click Replacing filament.
- Heat the nozzle to 200C.
- Unlock the extruder, pull out the filament and Teflon tubes.
- Completely remove the filaments from the Teflon tube.
- Insert filament from the outside until they come out of the Teflon tube, and insert filament from top to bottom until filament flow out of the nozzle.
- Lock the extrusion switch, restore the Teflon tube, and click Restore Printing.
- No filament detected, click Replacing filament.
- Unlock the extruder, pull out the filament and Teflon tubes.
- Completely remove the filament from the Teflon tube (waste).
- Restore the Teflon tube and unlock the extrusion.
- Insert filaments until they are coming out from the Teflon tube, and lock the extrusion switch until it cannot be pushed
- Click Extrude on the screen, observe the nozzle, if the filaments have been extruded, wait for "Extruding finish", if they are not extruded, lightly push the filaments forward and click "Extrude", and clean the nozzle after Finishing extruding
- Click Resume Printing