01.01.03.00

What changed

The only OTA on the English history page. The heading says Today; this row uses 3 Nov 2026, the day that page was published. Extra AMS units can attach through the first print tool, auto-refill groups can be edited by hand, and the print screens were rebuilt. The section we read has no known-issue heading.

• Up to four extra AMS, AMS 2 Pro, or AMS HT units can connect through print tool 1. They can start a print, load or unload filament, and run a drying cycle.
• Auto-refill groups can be edited by hand. Spools in the same material family, such as PLA, can refill across colors and subtypes. The notes use PLA Basic continuing from PLA Matte as the example.
• The on-screen UI was redesigned and the print pages were rebuilt. The status bar gains a clock, load and unload steps appear on the printer, and MiniWiki walks through common errors on screen.
• The E1 air purifier is supported, air-printing detection can be switched, the AMS 3H can read a TPU 75A RFID tag, and AMS drying can run for 72 hours instead of 24.
• An open door pauses the print unless that is changed under Settings, then Print Options. On a runout, Bambu Handy can move to another slot of the same filament type and continue. Pre-print warnings were expanded for some filaments.
• Fixes in the notes include surface damage if the USB drive was removed mid-print, a print tool sometimes left off the Swaptek rack, and a wrong remaining-filament reading for TPU 75A. Video recording no longer waits on a USB drive being detected. Cold pull, sleep, and routine loading and unloading were reworked.
• The same OTA also changes cutting, drawing, cold foil, deboss, and pen handling, including a cap that could be knocked off while homing. Those lines stay on the official history.

Known issues from the official notes

The wiki section reviewed for this version has no known-issue heading. Missing text is not the same as a clean bill of health.

Before you update

• After this update, an open door pauses the print. The notes put that control under Settings, then Print Options.

Sources

• H3C firmware release history — 01.01.03.00 (3 Nov 2026; heading said Today)