![]() ![]() Alternatively, you can also use cloud storage to and from which you can copy your data. It is important that nothing is lost for you and that you can transfer everything to the Mojave system that is available after the downgrade. It is up to you whether you push everything manually to an external hard drive or use one of the backup programs mentioned above. from the hard drive, you have to make a backup now at the latest. Since the downgrade process described below will completely remove all your data, files, programs, emails, music, photos, etc. Image source: / Update : A reader pointed out to me that you also have to select "Medium Security" above so that an older system (such as macOS Mojave in this case) can be installed. If your Mac from 2018 or 2019 has a T2 Security Chip, you must first specify that the computer can also be booted from external sources. If you are not sure whether your Mac, iMac or MacBook has a T2 chip, look in the system or at Apple in the device details. Because inside is the T2 security chip, which makes it necessary that you allow a system to be booted from external data carriers before (!) The downgrade. ![]() If you are using a MacBook Pro, MacBook Air or Mac mini from 2018 or 2019, you will need an extra step when downgrading from Catalina to Mojave. First of all: important step for newer Mac models with T2 chip! With the MBP 16-inch there is no way to "drive" with Mojave. But if you are currently buying an iMac model from 2019 that was available BEFORE Catalina, the downgrade should work. Apple Support then confirmed that new Macs that were already shipped with macOS Catalina AND were only released after Catalina was released can no longer be downgraded to Mojave. He tried to downgrade it to Mojave and also noticed the matter with the T2 chip, but the Mac keeps throwing an error message. I got an interesting tip from a reader who has a new 16-inch MacBook Pro. Sir Apfelot recommendation: Clean up your Mac hard drive with CleanMyMac Update January th, XNUMX: New Macs do not allow a downgrade Tip: With the app " AnyMacOS"You can easily create a bootable USB stick and the app will even download the appropriate macOS image (from macOS High Sierra) for you. Then you can simply upload this backup to your Mac and use the Apple computer as before without long instructions ) ![]() However, if you have a bootable backup of your Mojave or High Sierra system with you before the Catalina upgrade Carbon Copy Cloner, superduper! or SmartBackup have made, this post is not for you. You can find the instructions here so that nothing goes wrong. 7 Step 5: Re-equip Apple Mac or install Time Machine BackupÄid you have too many problems, errors and failures after upgrading your Apple Mac to macOS 10.15? Then it is worth downgrading from macOS Catalina to macOS Mojave.4 Step 2: Create a bootable stick / hard drive with macOS 10.14 Mojave.2 First of all: important step for newer Mac models with T2 chip!.1 Update January th, XNUMX: New Macs do not allow a downgrade. ![]()
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