Bambu Lab Launches H2C Firmware V01.01.03.00 in Public Beta

Bambu Lab has opened a public beta for H2C firmware v01.01.03.00, offering H2C owners early access to targeted quality-of-life optimizations and a staged rollout through the company’s Beta Firmware Program. The forum announcement states, “We’re excited to announce that firmware V01.01.03.00 for the H2C is now available through our Public Beta Program,” and gives an enrollment path: “To access the beta firmware, simply join the Beta Firmware Program via the Bambu Handy app under Me → Beta Firmware Program.”

The release highlights two explicit optimizations: “improved nozzle presence detection, optimized nozzle offset calibration to reduce false alarms.” The forum post also lists a Bug Fixes heading, but the public notes available to readers are truncated and include the fragment “bug fixes addressing inter,” so a complete changelog has not been published in the announcement text.

Enrollment is handled in-app and updates are delivered progressively. “Once enrolled, the update will be pushed to your device gradually,” the announcement says, and community replies clarify the rollout: “Beta firmware is pushed in waves. Not all beta testers get it at once. Your time will come.” Several users reported joining the beta but not receiving the update; one wrote, “edit : No newer firmware available, even after joining beta firmware program.”

The forum thread shows active troubleshooting between users and Bambu support. One user reported a suspected TPU printing issue, writing, “It appears to be a problem with TPU prints. My bambu project is a dual color TPU print with Bambu TPU for AMS in left nozzle and Bambu TPU90A in Right nozzle.” SupportAssistant asked for more detail and said, “The team was unable to replicate this problem with the latest Firmware and Studio version,” then requested diagnostic versions: “Please provide us the exact firmware version running on the H2C and the version of Studio.” In response a user supplied environment details as reported in the thread: “H2D version 01.02.02.00(latest version)” and “Bambu studio Version 2.5.0.64.”

Bambu’s wiki frames the Open Beta as a testbed for features that may arrive up to one month before final release: “The Bambu Lab Firmware Open Beta is a program where we offer the possibility to test and use latest firmware features before they become publicly available in the Release version,” and “Usually, the Beta Firmware is released with up to 1 month in advance, before the final release is available.” The wiki also stresses practical steps for testers: “Don't forget to perform a full calibration procedure after you have installed the Beta version of the firmware. This is a crucial step to ensure everything is correctly calibrated and ready to go.” It notes there will be a visible beta label: “After beta firmware is installed, there will be beta word on the version page for both Handy/Studio/Printer,” and encourages filing reports: “If you have found specific bugs and issues in the Beta Firmware, please take a bit of time to share the information with us in a new ticket.”

For H2C owners eager to get the update, join the Beta Firmware Program in the Handy app and expect a staggered arrival. Remember to run a full calibration after installing or after downgrading, and include firmware and Studio version details when filing a ticket so support can reproduce issues. The release puts nozzle sensors and offset tuning in sharper focus, but the missing full bug-fix list and user reports around TPU behavior mean testers will play a key role in validating fixes before the official release. Expect further notes from Bambu Lab and keep an eye on the forum for wave updates and a complete changelog.