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#MACOS CATALINA PATCHER 2021 HOW TO#
#MACOS CATALINA PATCHER 2021 INSTALL#
#MACOS CATALINA PATCHER 2021 UPDATE#

#MACOS CATALINA PATCHER 2021 INSTALL#

If you already backed everything up, reverting to the old install is quick and easy. Updating to a new version carries some risk of running into problems during installation. If you have anything important on your Mac, we recommend backing it up to an external drive or cloud storage service. Apple provides a handy list of compatible Macs, but here we summarize the list: Step 1: Check that your Mac is compatible Dan Baker/Digital Trendsįirst, make sure your Mac can run Catalina.

#MACOS CATALINA PATCHER 2021 HOW TO#

Uncheck "Install macOS Updates" & "Install system data files and security updates".Below, you’ll find our easy step-by-step instructions on how to download MacOS Catalina 10.15. Go to System Preferences > Software Update. Just make sure you don't install macOS Big Sur, and make sure automatic macOS system updates are unchecked to prevent your machine from automatically installing updates and potentially avoiding your machine from being bricked.

#MACOS CATALINA PATCHER 2021 UPDATE#

It also appears that after this update process, it enables permanent updates for macOS for the general public instead of the betas. You may or may not get a message saying that some patches (Night Shift Patch, for example) were overwritten by the update.

After your machine reboots, make sure to open Patch Updater and check for any patch updates for the system.

It’s a bit slow at first but it will reboot properly.

Your machine will reboot normally to the login screen.

If you miss it, you’ll need to reboot into the installer USB again to repeat Step 10 and 11. Pay attention to it, because when the patch process is complete, make sure you check the box that says "Force Cache Rebuild", then click Reboot. Make sure that the "Legacy Platform Compatibility Patch" is selected if its not already. Make sure you select your correct Mac model. If you haven't already, plug in your Patcher USB, select it and boot to it.

When your machine reboots, hold down the Option key.

Before the installation process is complete, you will need your Catalina Patcher USB.

Let the update run through the installation process.

When the update comes up again, hit "OTA Update Fix" again before you press Install.

Open System Preferences > Software Update.

When your machine reboots, open the CatalinaOTAswufix app then click "OTA Update Fix".

What will happen is, the computer will seem as if its installing it, but it actually reboots your machine instead. (This also applies for Supplemental Updates.) Click Download and install as if you were doing a normal update. When the normal software updates (not beta) show up, click on "Another update is available.

You may need to close the settings pane a couple times for it to take effect. Click under the cog where it says "Details", and click restore defaults to revert to general public updates.

After you enter your password, System Preferences will open and begin checking for Software Updates.

Delete it from your Applications folder once you move it) Make sure it's the actual application and not an alias. (If it gives you errors, move the application to your Desktop.

the CatalinaOTAswufix application (available on the MacRumors forum).

Your Catalina Patcher USB (hold on to this everytime you update).

I'm reposting his instructions with some added details for those who need it. Credit goes to u/imtherealshady97 for providing us with this guide on how to install the Catalina Supplemental Update on patched Macs.