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Mac Studio and Mac mini, whose power status indicator light should display amber.

Neither will a notebook keyboard light, nor is there normally any indication that a built-in display has power.

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This is even true of MacBook Pro models with MagSafe 3 power cables: in DFU mode, their LED doesn’t light up. Most then shown no obvious signs of life. There are some circumstances where Apple silicon Macs enter DFU mode as a last resort, for example when their firmware has become damaged. If that fails, or doesn’t fix the problem, then proceed to restore.

Dfu mode apple configurator 2 install#

Following that, you have to boot the Mac into internet (Remote) Recovery to download and install the current version of macOS, then migrate from a backup.Īs a general principle, unless you want to completely erase the internal SSD, you should try to revive first. Restoring installs the current firmware and erases the boot volume group. Reviving downloads and installs the current iBridge (BridgeOS) firmware, but doesn’t touch the System or Data volumes in the macOS container. Restoring erases the whole internal SSD, then installs the firmware, Recovery and macOS containers to the same state when that Mac was first unboxed, ready for personalisation and configuration of the fresh copy of macOS, and migration of data from a backup.įor T2 Macs, the processes are slightly different. Reviving installs a fresh copy of all the firmware and the Recovery container on the internal SSD, but leaves the macOS container untouched. Configurator will happily download the current 14 GB image for you, and previous versions are accessible through Mr.

Dfu mode apple configurator 2 full#

Apple provides detailed instructions for this in the Help book for Configurator 2, also available online for Apple silicon and T2 Intel models.įirmware and system software for a revive or full restore of an Apple silicon Mac in DFU mode comes in an IPSW image, supplied only by Apple. Because it doesn’t rely on firmware such as LLB or iBoot, those have to be sent over the USB connection from the Mac running Apple Configurator 2. It’s so basic that it doesn’t even support Thunderbolt connections, only USB-C. Erasing just that macOS container can’t fix some problems occurring with the internal SSD.ĭFU mode is run from the Boot ROM of Apple silicon Macs, so is the lowest level at which they can run. That started to become more complex when a dedicated Recovery volume was added, and since Big Sur even Intel Macs have had at least five APFS volumes in that main macOS container.įrom the start, Apple silicon Macs have come with three containers or partitions on their internal SSD, of which only one is used for the five volumes making up the boot volume group. In those older and simpler times, the internal boot disk had just two partitions: a hidden EFI partition, and the main container for its APFS volumes. This article looks at some good reasons for taking a modern Mac back to bare metal and starting from scratch. While you can certainly boot a T2 or Apple silicon Mac into Recovery, wipe and rebuild its macOS partition (container), in many cases that isn’t likely to be sufficient to return it to full working order.

Of course that didn’t do anything with the Mac’s firmware, which you were stuck with.

Wait for the Mac to reinstall macOS and done.It’s not that long ago that taking a Mac back to ‘bare metal’ was a simple matter of booting from an external disk and reformatting the internal drive, followed by installing macOS from scratch.

ipsw file on to your other Mac in DFU mode and click restore

Dfu mode apple configurator 2 password#

Open my DFU tool and enter your admin password.Connect your other Apple Silicon Mac via USB-C cable.Launch Apple Configuration 2 and install the 'Automation Tools'.Download Apple Configurator 2 from the Mac App store.Tool for putting a Apple Silicon Mac into DFU modeįull credit to Asahi Linux project for making the macvdmtool.