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Bambu LabHMS codeWarning0300_0D00_0001_00030300-0D00-0001-0003

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.

Print Hive summary

This warning means the printer could not confidently identify the build plate localization marker. In a farm, treat it as a setup consistency issue: confirm the right plate is installed, clean the visible marker area, and make sure lighting or residue is not preventing camera recognition.

At a glance

  • The printer could not confidently identify the build plate localization marker.
  • Pause the printer until the plate and marker area are checked.
  • Most farm incidents are setup consistency issues: plate type, residue, glare, or marker visibility.

Before you begin

  • Let the bed cool enough to handle safely.
  • Confirm the intended plate type in the sliced job or queue assignment.
  • Use a lint-free cloth so cleaning the marker area does not leave fibers behind.

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