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BMCU-X Firmware

An upgraded, quality-of-life fork of the original BMCU firmware for the 370c BMCU board.

Special thanks to @jarczakpawel for the original firmware project.

Note: This firmware currently needs to be updated every time you update your printer's official firmware to avoid errors.


Firmware Compatibility Status

Printer Model Status Tested Printer Firmware Notes
A1 Mini v01.08.01.00 and older Fully tested and working
A1 🟨 Unsure for latest Untested / Unconfirmed
A2L 🟨 Unsure for latest Untested / Unconfirmed

Key Features & Fixes

  • Fixed: Removed the "wrong firmware version" error shown by the printer.
  • More quality-of-life updates coming soon...

Roadmap

  • Automatically fetch AMS version to eliminate manual updates after printer firmware upgrades.
  • Add user customization options.

Contributing

Pull requests and contributions are welcome! Feel free to open an issue or submit a PR.


Disclaimer

This software is provided as-is without any warranties. Use at your own risk. The maintainers are not responsible for any damage caused to your hardware.

About

BMCU 370C (Hall) firmware for Bambu Lab A1 / A1 mini / P1S with buffer calibration - all known issues fixed, 100% AMS-compatible behavior.

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