Apple has released a new beta firmware update for several AirPods models, including the latest Pro and Max headphones, for developer and public testers.
Key points
- The update carries build number 9B5043a.
- It is available for AirPods Pro 2, Pro 3, 4, 5, and Max 2.
- Apple has not provided release notes for this beta.
Apple released a new beta firmware update for multiple AirPods models. The update is available to both developer and public beta testers.
What happened
Apple released a new beta firmware for the AirPods Pro 2, AirPods Pro 3, AirPods 4, AirPods 5, and AirPods Max 2, according to MacRumors. The update has the build number 9B5043a. Apple did not provide release notes explaining what changes or features are included in this specific build. The rollout coincides with the release of developer beta 4 for macOS 27.2, iOS 27.2, and iPadOS 27.2, as reported by 9to5Mac. Users can access the beta firmware option in the AirPods settings interface when connected to a host device.
Why it matters
Firmware updates for wireless headphones often address connectivity stability, audio performance, or security vulnerabilities. Because Apple does not publish detailed notes for AirPods betas, users cannot easily know what specific issues are being resolved. Installing beta software on peripheral devices can sometimes introduce new bugs or reduce battery efficiency. It is generally safer to wait for official stable releases unless you are specifically testing new features for development purposes.
The fix
- Ensure your iPhone, iPad, or Mac is updated to the latest OS version.
- Connect your AirPods to the device via Bluetooth.
- Place the AirPods in their charging case and close the lid.
- Keep the case closed and near the host device for at least 30 minutes.
- Open the lid to reconnect and check if the update completed.
Why it matters
Teams usually monitor beta releases to identify potential compatibility issues before stable versions launch. Check whether your current workflow depends on specific audio features that might change. Beta firmware is not recommended for critical professional use due to potential instability. Users should verify that their host devices support the latest operating system versions to ensure smooth pairing and update processes.
Background: Firmware
Firmware is the low-level software that initializes hardware. If attackers control it, they can hide malware that survives operating system reinstalls. You must verify firmware integrity using cryptographic signatures to ensure the hardware starts only with trusted code.
Read the full guide: Why Firmware Security Determines Your Device's True Attack Surface
What to do and how to stay safe: Apple
- Check your AirPods settings to see if the beta option is enabled.
- Disable beta updates if you prefer stable, tested firmware versions.
- Keep your host device connected to power while updating to prevent interruptions.
- Reset your AirPods if the firmware update fails to complete.
Step-by-step guide: What is password policies and how they protect systems
General security guidance from the Crypt Weekly newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Which AirPods models are eligible for the new beta firmware?
The update is available for AirPods Pro 2, AirPods Pro 3, AirPods 4, AirPods 5, and AirPods Max 2.
What is the build number of the new firmware?
The new beta firmware has the build number 9B5043a.
How long does it take for the firmware to update?
It can take at least 30 minutes, and sometimes a few hours, for the firmware to install.
