Bambu Lab has rolled out its latest firmware update, version 01.05.00.00, dated June 3, 2025, targeting its flagship A1 and A1 mini 3D printers. This upgrade introduces new features designed to boost security and offer users more granular control over their printing operations.

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Stronger security with Authorization Control

The most significant addition is the implementation of an Authorization Control system that verifies the source of control commands sent to the printer. This mechanism ensures that the machine accepts instructions only from official or authorized software, effectively blocking any suspicious or unrecognized commands. The aim is to prevent unauthorized access attempts or errors during the printing process.

Despite this enhanced protection, users retain the freedom to:

  • Use third-party slicers through integration with Bambu Connect.
  • Operate the printer completely offline.
  • Send files directly over LAN without relying on the cloud.
  • Downgrade the firmware to previous versions, providing flexibility in software management.

Developer Mode for full LAN control

The update also introduces a new Developer Mode, which can be activated only when connected via LAN. Once enabled, this mode disables the Authorization Control, allowing the printer to accept any command without verification. This option is aimed at advanced users and developers who want complete control over their printer, including the ability to use unofficial or custom software.

Update available for both A1 and A1 mini

Firmware version 01.05.00.00 is available for both the Bambu Lab A1 and A1 mini models, ensuring consistent security features across devices. The option to revert to older firmware versions adds an extra layer of assurance, allowing users to avoid potential issues caused by updates.

A step forward for 3D printing

With this update, Bambu Lab confirms its commitment to user security and operational flexibility. The new Authorization Control system adds an important safeguard against unauthorized access, while Developer Mode opens new possibilities for users who want to customize and experiment freely.

In a rapidly evolving 3D printing market, these enhancements highlight Bambu Lab’s dedication to delivering cutting-edge solutions that balance security and freedom, catering to a wide range of users-from beginners to professionals.