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Apple Surprises with Firmware Update for MagSafe Cable

Close-up of the left side of a silver-colored laptop. Visible are the keyboard, the edge of the open screen, and two USB-C ports on the side of the casing. Next to them is a magnetic charging port with five contact points. The background is blurred, and the device rests on a light-colored surface.
Apple Releases New Firmware for MagSafe 3 Charging Cable for MacBook Air and MacBook Pro Photo: Getty Images
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October 12, 2026, 7:09 am | Read time: 2 minutes

Apple has unexpectedly updated its MagSafe 3 charging cable with new firmware. The update occurs automatically and remains largely invisible to users.

Apple is distributing new firmware for the USB-C to MagSafe 3 cable, used for charging current MacBook Air and MacBook Pro models. As reported by the specialist site MacRumors, the new version is numbered 3.2.0 and replaces the previous firmware 3.1.12.

What is particularly noteworthy is that Apple has released a firmware update for a charging cable at all. Such updates are more commonly associated with smartphones, laptops, or headphones. For the MagSafe 3 cable, this is also the first known update in more than three years. The previous firmware version was released back in February 2023.

Apple Holds Back on Details

Apple does not disclose what changes the new firmware brings. The company has not yet published a changelog or any additional technical information. Therefore, it remains unclear whether the update fixes charging errors, improves stability, or merely includes internal adjustments.

This is not unusual for Apple accessories. While major updates for iPhone, iPad, or Mac are often thoroughly documented, changes to smaller accessories frequently remain in the background. In this case, users receive a new firmware version but do not learn what improvements have actually been implemented.

Installation Occurs Automatically

Owners of an affected cable do not need to take any action. According to MacRumors, the firmware installs automatically once the MagSafe 3 cable is connected to a Mac and a power adapter. There is no option to manually initiate the process.

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Equally unusual is the lack of control options. macOS does not display the firmware version of the MagSafe cable in the system information. As a result, it is not possible to check whether the update has already been installed or which version is currently running on the cable. The update operates entirely in the background and is likely to go unnoticed by most users.

This article is a machine translation of the original German version of TECHBOOK and has been reviewed for accuracy and quality by a native speaker. For feedback, please contact us at info@techbook.de.

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