How to Downgrade from Big Sur to Catalina

Apple Ninja October 26, 2020
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Need to downgrade your Mac OS? Here are 3 ways to do it. SUBSCRIBE & HIT THE 🔔 https://www.youtube.com/c/AppleNinja 00:00 Info 00:26 Backup User Folder 00:44 Time Machine Downgrade 01:26 Recovery Partition Downgrade 02:34 Create Bootable USB Drive with Desired macOS for Downgrade 04:23 Modify T2 Mac Security To Allow for External Disk Booting 05:10 Reboot to Bootable USB Drive 05:33 Open Disk Utility and Wipe Drive 06:10 Install MacOS 06:50 Copy Back User Files OPTION 1: Time Machine Backup Downgrade You Have a Time Machine Backup of the Previous macOS you want to go back to. Please Note: You must manually backup all new files you created on Big Sur to an external drive before proceeding with a Time Machine Restore. How to Restore with Time Machine Backup with Previous MacOS: 1. Reboot into Recovery by holding Command + R on Startup 2. Choose Time Machine Backup and Select the Backup to restore from. OPTION 2: Recovery Partition Downgrade Boot to Recovery Partition - Options Below: Command + R Reinstall the latest macOS that was installed on your Mac (recommended). Option + Command + R Upgrade to the latest macOS that is compatible with your Mac. Shift + Option + Command + R Reinstall the macOS that came with your Mac, or the closest version still available. OPTION 3: Create Bootable USB Drive with Desired macOS Downgrade You have no Time Machine Backup. Copy User Files off to an external drive. Please Note: All Apps and Files will be wiped with this process, so make sure to backup what you can. 1. Make note of all your Apps (Take A Pic of Apps Folder) and Copy any Serial Numbers or Required Info from within the App. 2. Copy whole User Folder to External Drive. Some Apps can be copied this way as well, but I prefer to reinstall all apps. 3. Download the MacOS you want to go back to. 4. Create Bootable macOS Installer Media. 5. Reboot into Recovery by holding Command + R on Startup * T2 Macs will require modifying the Security to allow booting to older macOS. 6. Boot to External Drive - Choose Disk Utility and Wipe the Root Drive 7. Install macOS Catalina 8. Restore User Files and ReInstall Apps How to Downgrade from Big Sur to Catalina Catalina - App Store Download Link https://itunes.apple.com/us/app/macos-catalina/id1466841314?ls=1&mt=12 https://support.apple.com/kb/HT201475 Mojave - App Store Download Link https://itunes.apple.com/us/app/macos-mojave/id1398502828?ls=1&mt=12 https://support.apple.com/kb/HT210190 High Sierra - App Store Download Link https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?ls=1&mt=12 https://support.apple.com/kb/HT208969 Sierra - DMG Download Link http://updates-http.cdn-apple.com/2019/cert/061-39476-20191023-48f365f4-0015-4c41-9f44-39d3d2aca067/InstallOS.dmg https://support.apple.com/kb/HT208202 El Capitan - DMG Download Link http://updates-http.cdn-apple.com/2019/cert/061-41424-20191024-218af9ec-cf50-4516-9011-228c78eda3d2/InstallMacOSX.dmg https://support.apple.com/kb/HT206886 Yosemite - DMG Download Link http://updates-http.cdn-apple.com/2019/cert/061-41343-20191023-02465f92-3ab5-4c92-bfe2-b725447a070d/InstallMacOSX.dmg https://support.apple.com/kb/HT210717 🔥Top Mac Gear on Amazon🔥 🔥 Gaming Headsets BENGOO G9000 Stereo Gaming Headset - Noise Cancelling Over Ear Headphones with Mic, LED Light, Bass Surround, Soft Memory Earmuffs https://amzn.to/3wUmnKU SteelSeries Arctis 3 - All-Platform Gaming Headset https://amzn.to/3hPpn70 🔥 Wifi Boosters NETGEAR WiFi Mesh Range Extender EX7500 - Coverage up to 2300 sq.ft. and 45 devices with AC2200 Tri-Band Wireless Signal Booster & Repeater (up to 2200Mbps speed), plus Mesh Smart Roaming https://amzn.to/3rjNRbF NETGEAR WiFi Mesh Range Extender EX8000 - Coverage up to 2500 sq.ft. and 50 Devices with AC3000 Tri-Band Wireless Signal Booster & Repeater (Up to 3000 Mbps Speed), Plus Mesh Smart Roaming https://amzn.to/3z7yJAL 🔥 Hubs | Docks Anker USB C Hub, PowerExpand 8-in-1 USB C Adapter, with Dual 4K HDMI, 100W Power Delivery, 1 Gbps Ethernet, 2 USB 3.0 Data Ports, SD and microSD Card Reader https://amzn.to/3euxR1k Brydge Vertical Dock Compatible with 15-inch MacBook Pro with Touch Bar (2019-2016), 2 x Thunderbolt 3 Ports https://amzn.to/3rpGIqg 🔥 Monitors Acer SB220Q bi 21.5 Inches Full HD (1920 x 1080) IPS Ultra-Thin Zero Frame Monitor https://amzn.to/3Bf0nxu SAMSUNG CH890 Series 34-Inch Ultrawide QHD (3440x1440), 100Hz, Curved, HDMI, USB-C https://amzn.to/3kxHboO Disclaimer: Apple Ninja is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees, at no cost to the buyer, by advertising and linking to Amazon.com. Amazon and the Amazon logo are trademarks of Amazon.com, Inc or its affiliates. Make sure to check out these 2 Awesome Channels: Mr. Macintosh https://www.youtube.com/channel/UC7FRPWLwRlhORhFHHywfqAg Swift Goose https://www.youtube.com/watch?v=R58dWPgwR34&t=190s

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