Perform DFU Restores on Apple Silicon Macs with Macvdmtool (2021)

2026-06-29 | original

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Why This Matters

This article highlights the new capability to perform Device Firmware Update (DFU) restores on Apple Silicon Macs using the Macvdmtool, marking a significant advancement for troubleshooting and recovery processes. This development enhances the tools available for maintaining and repairing modern Macs, offering more robust support for users and technicians alike.

Key Takeaways

Enables DFU restores on Apple Silicon Macs with Macvdmtool.
Improves troubleshooting and recovery options for Mac users.
Addresses compatibility and support challenges in the evolving Apple ecosystem.

objc[53015]: Class AMSupportURLConnectionDelegate is implemented in both /usr/lib/libauthinstall.dylib (0x1da64c9e8) and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x104d782c8). One of the two will be used. Which one is undefined.

objc[53015]: Class AMSupportURLSession is implemented in both /usr/lib/libauthinstall.dylib (0x1da64ca38) and /Library/Apple/System/Library/PrivateFrameworks/MobileDevice.framework/Versions/A/MobileDevice (0x104d78318). One of the two will be used. Which one is undefined.

cfgutil: restore: target OS is 12.1

Waiting for the device [1/2] [*******************************************] 100%

Explore topics: apple silicon macvdmtool dfu restore mobiledevice os 12.1