Mac Pro with rack enclosure: On the front of the Mac, plug the USB-C cable into the USB-C port closest to the power button. Mac Pro with desktop enclosure: On the top of the Mac, plug the USB-C cable into the USB-C port farthest from the power button.

Mac Studio: Facing the back of the Mac, plug the USB-C cable into the rightmost USB-C port. Mac mini with T2 chip: Facing the back of the Mac, plug the USB-C cable into the rightmost USB-C port. Mac mini with Apple silicon: Facing the back of the Mac, plug the USB-C cable into the leftmost USB-C port. IMac: Facing the back of the Mac, plug the USB-C cable into the rightmost USB-C port. Mac with T2 chip: Keep holding all four keys for about 3 seconds, then release all keys.įollow the steps below to revive or restore. After about 3 seconds, release the power button. Mac with Apple silicon: Keep holding all four keys for about 10 seconds, then release all keys except the power button. Shift ⇧ on the right side of the keyboard Option ⌥ on the left side of the keyboard Press and release the power button, then immediately press and hold all four of these together on the built-in keyboard:Ĭontrol ⌃ on the left side of the keyboard (If your Mac has a Touch ID button, it's also the power button.) Press and hold the power button for up to 10 seconds, until the Mac turns off. Make sure that the Mac is connected to the internet. Plug the other end of the USB-C cable into any USB-C port. This is the rightmost USB-C port on another laptop model: This is the leftmost USB-C port on one laptop model: The left side of every laptop has a USB-C port farthest to the left (leftmost) and farthest to the right (rightmost). Mac with T2 chip: Facing the ports on the left side of the Mac, plug the USB-C cable into the rightmost USB-C port. Mac with Apple silicon: Facing the ports on the left side of the Mac, plug the USB-C cable into the leftmost USB-C port. On the affected MacBook Pro or MacBook Air: You will use the USB-C cable to connect the two computers, then enter DFU (device firmware update) mode on the affected Mac. Don't use a Thunderbolt 3 cable.įollow these steps based on whether the affected Mac is a laptop computer or desktop computer, and whether it's a Mac with Apple silicon or a Mac with the Apple T2 Security Chip. It works with ports on Mac that accept a type USB-C connector: Thunderbolt 4, Thunderbolt / USB 4, Thunderbolt 3, or USB 3. This Mac must be using macOS Monterey or later.Ī USB-C to USB-C cable that supports data and charging, such as the Apple USB-C Charge Cable included with some Apple products. Other Mac models don't apply.Īnother Mac, which you will use to revive or restore the affected Mac.

The affected Mac, which is the Mac with Apple silicon or Mac with the Apple T2 Security Chip that you're reviving or restoring. If reviving is unsuccessful, you can restore instead. To resolve without erasing any of your files, revive the firmware of your Mac. Starts up to a blank screen (but there are other causes and solutions for a blank screen) Shows the status indicator light pattern for firmware recovery mode Starts up to an exclamation point in a circle This can occur in certain rare circumstances, such as when a power failure interrupts macOS installation. If the firmware stored in its memory needs to be revived or restored, a Mac with Apple silicon or the Apple T2 Security Chip might become unresponsive. How to revive or restore When to revive or restore How to set up your computers to revive or restore Rarely, a Mac with Apple silicon or the Apple T2 Security Chip might stop responding and need to be revived or restored by another Mac.

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