If you want to revert your Mac to a previous version due to compatibility issues, ReiBoot is the best bet for you. It provides a hassle-free solution that saves time and effort. With just a few clicks, you can downgrade your macOS version, and ReiBoot will handle the rest.

This guide mainly introduce how to downgrade your Mac devices. You need to download and install the ReiBoot on your computer first, then follow the steps below.

Step 1 Connect Both Mac Devices

Run ReiBoot on your computer and connect both Mac devices or Mac & Win. Once the devices are connected, click “More Features” at the bottom left of the panel. Then choose "macOS Upgrade/Downgrade" to proceed.

upgrade macos with reiboot

Step 2 Choose Downgrading Option

No matter beta version or final version, you should choose "Downgrading" mode. Then, click the button below.

upgrade macos with reiboot

Step 3 Enter into DFU Mode

Follow the instructions below to put your mac into DFU mode. The methods are different from models, please make sure you choose the right model.

upgrade macos with reiboot

Step 4 Download Firmware Package

ReiBoot will detect your macOS version automatically and display the downgradable macOS firmware. Click “Download” to get the package.

upgrade macos with reiboot
  • If you failed to download the firmware, just hit the ‘click here’ to download it through browser.
  • If you've already have a firmware on computer, just click "import local file" to import the firmware manually.

It may take a few minutes to download the firmware.

upgrade macos with reiboot


1. Unsigned IPSWs cannot currently be restored via ReiBoot. If the macOS version is not supported to downgrade, the program will prompt that no downgradable macOS firmware found.

upgrade macos with reiboot

You can visit the IPSW website to check which firmware Apple is signing.

Step 5 Initiating Downgrade

Once the firmware package is downloaded on your computer, you can click 'Initiating Downgrade' to downgrade macOS.

upgrade macos with reiboot

Initiating Downgrade will cause all data and settings loss, please make sure that you have made a backup before. If confirmed, then click “Continue” button.

upgrade macos with reiboot

Step 6 Downgrading

upgrade macos with reiboot

When the downgrade is completed, you will see the completed page and your mac device will go back to the previous version.

upgrade macos with reiboot

Was this page Helpful ?

Thank you for your feedback. Your response will help improve this page

Still Need Help?

Just contact our support team and we will reply to you within 24 hours on business days.

Contact Support
guide robot