H2C Firmware V01.01.50.00 Now in Public Beta!

New H2C Firmware Available for Public Beta Testing!

We’re excited to announce that firmware V01.01.50.00 for the H2C is now available through our Public Beta Program.

How to Join the Beta
To access the beta firmware, simply join the Beta Firmware Program via the Bambu Handy app under Me → Beta Firmware Program.

Once enrolled, the update will be pushed to your device gradually.

:arrows_counterclockwise: Want to Switch Back?
You can leave the Beta Program at any time by disabling the option in the app and installing the latest official firmware version.

New Features

1. Added support for the Filament Track Switch

The filament track switch is specially designed for dual-nozzle printers, equipped with 2 filament inlets and 2 filament outlets, and supports seamless mapping between AMS and dual nozzles.
For more details, please refer to the wiki:

Filament Track Switch User Guide - H2 Series | Bambu Lab Wiki

This feature requires Bambu Studio v2.5.3.60 or later / Bambu Handy V3.18.0 or later.

2. Added support for remotely enabling the AMS drying function.

Users can now turn on the drying feature for the AMS 2 Pro and AMS HT from both Bambu Studio and Bambu Handy. Ensure the latest update is installed for both.

3. Added support for printing while filament is drying when using AMS 2 Pro and AMS HT. (Lower drying temperature during printing)

4. Added support for TPU printing on the left nozzle, for TPU with a hardness of 90A or higher.

5. Added support for starting prints over LAN without requiring a USB storage device.

6. Added foreign object detection beneath the heatbed. Requires Bambu Studio version 2.5.3 or above.

7. Added live image display in AI detection error pop-ups.

8. Added a Regulation Certification page for certification e-labeling.

9. Added Purify Air at Print End option.
This option can be set in the slicer or with a button in the UI. It will purify the air for 3 minutes after the print is completed. Requires Bambu Studio version 2.5.3 or above.

10. Added a “Stopping” state after a stop command is initiated.
During this state, the printer blocks user input until the stop process is complete, preventing control command sequence conflicts caused by additional inputs during the stopping procedure.

11. Added a filtering option with cooling mode for the adaptive air circulation system.

This option can be enabled via the slicer or the printer UI, and it’s mainly used to filter the air when exhausting the air for low-temperature filaments. Requires Bambu Studio version 2.5.3 or above.

12. Added BirdsEye camera initialization for the Cutting Module.

13. Optimized the filament color display on the filament editing page, adding support for gradient and dual-color filaments.

14. Added support for Rotary Attachment, Requires Bambu Suite 01.02.02.00 version or above.

New support for laser machining of cylindrical and rotary workpieces by integrating a rotary attachment .
Combined non-contact 3D mesh measurement with motion planning algorithms to generate and execute processing paths for both cylinders and rotary bodies. The overall workflow is streamlined, integrating multiple functions into a single click, and achieves a “What You See Is What You Get” experience through camera-based positioning.

Added a new page for real-time rotary attachment angle monitoring.
This page allows you to adjust the target object to a horizontal position before engraving, ensuring the captured unwrapped image better aligns with the actual object and improving overall engraving precision.

Feature Optimizations

  1. Improved the accuracy of build plate offset detection.

  2. Optimized collision detection for the purge bin.

  3. Improved motor noise-related surface defects at low speeds.

This optimization requires recalibrating motor noise reduction after upgrading to take effect. Important: If rolling back from this version to version 01.01.05.00 or earlier, motor noise reduction calibration must be performed again to ensure proper operation.

  1. Improved the issue where the flow blocker could potentially bend following a nozzle flow calibration.

Known Issues:

  • Filament PTFE tube detachment detection is temporarily disabled.

Please also note that if you find specific issues, bugs, or suggestion for improvement, we would appreciate it if you can share it via the Beta Feedback form.

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3D printable files available on MakerWorld

Installation Guide available on the Wiki

STL File: H2 filament-track-switch-holder.stl.zip (291.5 KB)
STP File: H2 filament-track-switch-holder.stp.zip (69.9 KB)

The other parts are the same and can be downloaded on MakerWorld.

Thank you for your help in testing this Beta version. :folded_hands:

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Can somebody who already has access to the new firmware test if the long wait for heating when switching from right to left nozzle is fixed?

If not, we have a new firmware with features we can’t use as they require a Bambu studio version which increases print times significantly.

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The beta version should solve this problem.

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No clue. I haven’t received my beta firmware update. I had to downgrade Bambu Studio because the increase printing time was unbearable.

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Would be great if you could also share a design that’s putting the track switch closer to the ptfe inlets.

Currently, we only offer the design shared above. We will also include the STEP files when they get published to MakerWorld.

In terms of position, the curvature of the PTFE tubes should be considered, as the tube can restrict the filament movement and lead to load/unload failures.

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One more question: for using 4 in 1 ptfe adapters, what’s the current recommended tube length between the switch and the adapter?

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The information is presented in the wiki link from the first post.

The same information should apply for H2C. But I will confirm the details with the team and ensure it is included in the H2C Wiki article.

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The purify air at print end is a nice feature.

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Please try to follow the suggestion and send a private message. It’s best to keep this thread focused on the bug reports.

The previous comments were removed, but the usernames have been added to the beta queue. Please try in a few hours after restarting the printer.

Thank you

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Send a private message to @SupportAssistant guys, otherwise this topic will have no room for reporting and will become a mess.

Edit: @supportassistant, you beat me to it

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I dont see a way to send a private msg on here?

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you click on SupportAssistant in their post and then click on the message blue box at the top right of the pop-up window

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People that have not posted before appear to not have that option.

I do not get that option and after search it appears that is because i have not had need to post before.

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It’s the X2D version compatible for the H2C, I’m looking into purchasing one, but I have no idea if there is a hardware difference?

Yes. It is the same model.

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Then click on “My messages” in the left panel, select new message blue box, write @SupportAssistant in the “Add users or Group” field, write something like “H2C beta firmware 01.01.50.00” in the subject field, write your message and send.

With all the componets and cables too? just to be sure, Thank you:)

It’s 01.01.50.00

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