If your M1 Mac is unresponsive, you can try a revive first which won’t erase your data. A USB-C to USB-C cable (or USB-A to C cable) Apple notes it must support power and data and Thunderbolt 3 cables won’t work for this process.Apple notes “You may need to configure your web proxy or firewall ports to allow all network traffic from Apple devices to Apple’s network 17.0.0.0/8.” Read more on this here.A second Mac with the latest version of Apple Configurator 2 installed (and internet access).If you can’t do that or know you want to fully restore your M1 Mac, here’s what you’ll need: What you need to revive or restore M1 Macs
Now choose Reinstall macOS and hit Continue and follow the prompts.With your Mac powered off, press and hold the power button until you see “Loading startup options”.
MAC OS RECOVERY KEY ID FULL
If you can boot up your M1 Mac to macOS Recovery, you may be able to reinstall macOS without having to revive or do a full restore which both require a second Mac and Apple Configurator 2. As such, you’ll want to have your data backed up. What is an M1 Mac restore?Ī restore will erase your Mac’s drive but it also restores the firmware, updates recoveryOS to the most recent version, and reinstalls the latest version of macOS. However, keep in mind that if you need to reinstall macOS after performing a revive, that will erase your drive. A revive is designed to not make any changes to the startup volume, the user’s data volume, or any other volumes. A revive updates the firmware and updates recoveryOS to the latest version. In very rare circumstances, such as a power failure during a macOS upgrade, a Mac may become unresponsive and so the firmware must be revived. Here’s how Apple describes when you would need to “revive” an M1 Mac and what it does:
MAC OS RECOVERY KEY ID HOW TO
How to revive and restore M1 Macs – MacBook Air, Pro, and Mac mini What is an M1 Mac revive?
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