![]() During this task, an Apple logo will appear and disappear on the second Mac several times. Select the Mac DFU icon to restore (in the Apple Configurator window on the first Mac), right click ^ pressed, go to Actions » Restoreand select "Restore". To restore the firmware, erase all data and reinstall the latest version of recoveryOS and macOS After that release them, but keep holding the power button until a DFU icon appears in Apple Configurator on the first Mac. MacBook Air or Pro: connect to power, press and release the power button, press it again and at the same time press these three keys for about ten seconds: ⇧ turn (Correct), ⌥ option (left) and ⌃ control (left).The status indicator light should turn amber and a DFU icon should appear in Apple Configurator on Mac Studio or Mac mini. Mac Studio or a Mac mini: Connect a monitor to them (if you want to see the progress of the process), unplug the PC for at least ten seconds, press and hold the power button, then plug it back in without releasing the button.Once the restore starts, you will see an Apple logo and a progress bar. 24″ Mac: Unplug it from power and while holding down the power button, plug it in and hold for about three seconds. ![]() Make sure to power them on using the USB-C port closest to the power port, either the MagSafe or higher (on MacBooks with USB-C ports). Then turn off the other Mac and connect them to each other using a USB-C cable. Make sure the first Mac with Apple Configurator installed is plugged in and turned on. Please note that it must support power and data and Thunderbolt 3 cable is not supported. A USB-C to USB-C charging cable or a USB-A to USB-C cable.You may need to configure the ports of attorney o firewall to allow all network traffic from devices to the Apple 17.0.0.0/8 network (you can find more information about this in Apple's support document). ![]() You can download it directly from the Mac App Store here.
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