Bambu HMS 0300_0D00_0001_0003: build plate localization marker not found

Troubleshoot a Bambu Lab HMS build plate localization marker warning before it causes first-layer or print-start issues.

Applies to

Topics

• HMS codes
• Print quality

Symptoms

• HMS reports code 0300_0D00_0001_0003 or a build plate localization marker warning.
• Print start is interrupted or the printer asks for build plate confirmation.
• The issue may appear after swapping plates, cleaning the bed, or changing lighting near the printer.

Likely causes

• The build plate marker is dirty, covered, damaged, or outside the camera view.
• The installed plate does not match the selected plate profile.
• Glare, residue, or poor chamber lighting is making recognition unreliable.

Troubleshooting steps

1. Pause the queue for this printer so the same setup error does not repeat across jobs.
2. Remove the plate, clean the marker area and plate surface, then reseat the plate fully against the stops.
3. Confirm the slicer/job plate type matches the physical plate installed on the printer.
4. Restart plate detection or power-cycle the printer if the warning persists after cleaning and reseating.
5. If the marker is damaged, replace the plate or route jobs to another printer until the plate can be verified.

When to escalate

Escalate to Bambu Lab support if the marker is clean and visible but the same HMS code repeats on multiple known-good plates.

Official and source links

• Bambu Lab Wiki — HMS 0300_0D00_0001_0003 (official) · official vendor · checked 2026-06-18
• Bambu Lab Wiki — HMS Error Code overview (official) · vendor overview · checked 2026-06-18