Uploaded August 2025 | Updated September 2026, 1 week ago
Apple just released macOS Sequoia 15.6.1 Update! In this video, I'll go over all the details that you will need to know about this update, including all the new features & fixes. Plus I'll also preview the OpenCore Legacy Patcher 2.4.0 Update! CHAPTERS BELOW!
0:00 macOS Sequoia 15.6.1 Welcome and intro
0:21 Full Apple Software Update release list iOS, iPadOS & visionOS
1:11 Using System Settings to download & install the Sequoia 15.6.1 update
2:21 I’m Using the ScreenSharing app to control my Mac fleet!
2:33 Talking about the 2018 T2 Mac mini vs the M1 Mac mini - Value
3:51 NOTE: How long it takes to prepare the update = Apple is off by 25 Minutes!
4:27 My macOS Tips of the video!
5:26 Full installer & IPSW Restore files of macOS Sequoia 15.6.1
5:44 How long did it take to install the 15.6.1 update on Apple Silicon & Intel Macs
6:45 Sequoia 15.6.1 Update Checking Build Version
7:04 Is Apple Intelligence & Auto Software Updates enabled after installing 15.6.1?
7:48 macOS Sequoia 15.6.1 Update Firmware Updates - Intel & Apple Silicon
9:35 Was Safari Web Browser updated? Why is checking the version important?
10:20 What’s new in the macOS Sequoia 15.6.1 Update ?
12:18 macOS Sequoia 15.6.1 Update Geekbench 6 Benchmarks
12:51 OpenCore Legacy Patcher 2.4.0 & 15.6.1 Quick Look Preview!
13:02 WARNING FOR macOS Sequoia 15.7 & OCLP 2.4.0!!!!
14:23 How to check the current Kernel Debug Kit Status (Waiting on Apple!)
14:44 How to check the current status of the MetallibSupportPKG
15:13 Reddit r/OpenCoreLegacyPatcher subreddit info
15:26 How users accidentally updated to Sequoia 15.7 Beta
16:40 Checking OCLP 2.4.0 - 2017 15” MacBook Pro & 2013 Mac Pro
17:52 Any Questions ? THANK YOU!!!!
The macOS Sequoia 15.6.1 Update was released on 8/20/25 @ 12:18 PM CDT
My macOS Sequoia 15.6.1 Update Article
mrmacintosh.com/macos-sequoia-15-6-1-update-everything-you-need-to-know
What's new in macOS Sequoia Updates Page
support.apple.com/en-us/120283
Apple Security Updates Page
support.apple.com/en-us/100100
What's new for enterprise in macOS Sequoia
support.apple.com/en-gb/121011
Support Mr. Macintosh
patreon.com/mrmacintosh
paypal.me/mrmacintoshblog
My Install macOS Sequoia on Unsupported Macs Video - youtu.be/rfa2aSm7OxQ
Download Full macOS Sequoia Installers InstallAssistant.pkg
mrmacintosh.com/macos-sonoma-full-installer-database-download-directly-from-apple
Download Full macOS Sequoia, Sonoma, Ventura, Monterey & Big Sur M1, M2, M3 & M4 Apple Silicon IPSW Files
mrmacintosh.com/apple-silicon-m1-full-macos-restore-ipsw-firmware-files-database
Links
MrMacintosh.com - Apple Mac Enterprise IT Blog & macOS News for MacAdmins
Twitter
twitter.com/ClassicII_MrMac
Subscribe to "The Apple Ninja's" YouTube! If it wasn't for him, I would not even be on YouTube today. Thank you!!!
youtube.com/channel/UCRddzq1GBchvbZqnVkioKnQ
Apple just released macOS Sequoia 15.6.1 Update! In this video, I'll go over all the details that you will need to know about this update, including all the new features & fixes. Plus I'll also preview the OpenCore Legacy Patcher 2.4.0 Update! CHAPTERS BELOW!
0:00 macOS Sequoia 15.6.1 Welcome and intro
0:21 Full Apple Software Update release list iOS, iPadOS & visionOS
1:11 Using System Settings to download & install the Sequoia 15.6.1 update
2:21 I’m Using the ScreenSharing app to control my Mac fleet!
2:33 Talking about the 2018 T2 Mac mini vs the M1 Mac mini - Value
3:51 NOTE: How long it takes to prepare the update = Apple is off by 25 Minutes!
4:27 My macOS Tips of the video!
5:26 Full installer & IPSW Restore files of macOS Sequoia 15.6.1
5:44 How long did it take to install the 15.6.1 update on Apple Silicon & Intel Macs
6:45 Sequoia 15.6.1 Update Checking Build Version
7:04 Is Apple Intelligence & Auto Software Updates enabled after installing 15.6.1?
7:48 macOS Sequoia 15.6.1 Update Firmware Updates - Intel & Apple Silicon
9:35 Was Safari Web Browser updated? Why is checking the version important?
10:20 What’s new in the macOS Sequoia 15.6.1 Update ?
12:18 macOS Sequoia 15.6.1 Update Geekbench 6 Benchmarks
12:51 OpenCore Legacy Patcher 2.4.0 & 15.6.1 Quick Look Preview!
13:02 WARNING FOR macOS Sequoia 15.7 & OCLP 2.4.0!!!!
14:23 How to check the current Kernel Debug Kit Status (Waiting on Apple!)
14:44 How to check the current status of the MetallibSupportPKG
15:13 Reddit r/OpenCoreLegacyPatcher subreddit info
15:26 How users accidentally updated to Sequoia 15.7 Beta
16:40 Checking OCLP 2.4.0 - 2017 15” MacBook Pro & 2013 Mac Pro
17:52 Any Questions ? THANK YOU!!!!
The macOS Sequoia 15.6.1 Update was released on 8/20/25 @ 12:18 PM CDT
My macOS Sequoia 15.6.1 Update Article
mrmacintosh.com/macos-sequoia-15-6-1-update-everything-you-need-to-know
What's new in macOS Sequoia Updates Page
support.apple.com/en-us/120283
Apple Security Updates Page
support.apple.com/en-us/100100
What's new for enterprise in macOS Sequoia
support.apple.com/en-gb/121011
Support Mr. Macintosh
patreon.com/mrmacintosh
paypal.me/mrmacintoshblog
My Install macOS Sequoia on Unsupported Macs Video - youtu.be/rfa2aSm7OxQ
Download Full macOS Sequoia Installers InstallAssistant.pkg
mrmacintosh.com/macos-sonoma-full-installer-database-download-directly-from-apple
Download Full macOS Sequoia, Sonoma, Ventura, Monterey & Big Sur M1, M2, M3 & M4 Apple Silicon IPSW Files
mrmacintosh.com/apple-silicon-m1-full-macos-restore-ipsw-firmware-files-database
Links
MrMacintosh.com - Apple Mac Enterprise IT Blog & macOS News for MacAdmins
twitter.com/ClassicII_MrMac
Subscribe to "The Apple Ninja's" YouTube! If it wasn't for him, I would not even be on YouTube today. Thank you!!!
youtube.com/channel/UCRddzq1GBchvbZqnVkioKnQ
![Sonoma 14.3.1 Update! Whats New? + OCLP 1.3.0 Issues [DEEP DIVE]](https://i.ytimg.com/vi/Yw7ELt2ezTM/mqdefault.jpg "Sonoma 14.3.1 Update! Whats New? + OCLP 1.3.0 Issues [DEEP DIVE]
Apple just released the 4th minor update for macOS Sonoma 14.3.1. In this video, Ill go over all the details that you will need to know about this update. Plus Ill cover OpenCore Legacy Patcher 1.3.0 support for macOS Sonoma 14.3.1 on Unsupported Macs. CHAPTERS BELOW!
0:00 macOS Sonoma 14.3.1 Update Welcome and intro
0:49 Full Apple update releases list = iOS 17.3.1, iPadOS 17.3.1 & watchOS 10.3.1
1:33 Using System Settings to download & install the Sonoma 14.3.1 update
2:02 What is the new build number of the 14.3.1 Update? What about Beta?
2:55 What about Rapid Security Response updates (RSR’s) for macOS Sonoma ?
3:17 How long did the macOS Sonoma 14.3.1 update take to Install?
3:43 M1/M2/M3 Firmware update & T2 Intel Firmware
4:02 macOS Sonoma 14.3.1 Full installer & M1/M2/M3 IPSW Restore file
4:16 What’s new in the macOS Sonoma 14.3.1 Update?
4:34 Security content of the macOS Sonoma 14.3.1 Update
4:52 What’s new in updates for macOS Sonoma
5:29 What’s new in Enterprise in Sonoma 14.3.1 Update?
6:12 About this Mac - Model & Year now correctly displayed!
6:53 macOS Sonoma 14.3.1 Update Geekbench 6 Benchmarks
7:20 macOS Sonoma 14.3.1 compatibility with OCLP 1.3.0
7:54 DEMO: If the Auto KDK download patcher does not start
8:48 Does your Mac need the Kernel Debug Kit download? A full list
9:38 If the KDK is NOT downloading before the Sonoma 14.3.1 Update
10:35 How do we know what the latest KDK Is? The OCLP KDK GitHub Page!
11:04 Sonoma 14.3.1 KDK Released 6 HOURS after the Update was released!!!
11:37 New Recommendation! Check KDK page first OR wait at least 6 Horus before updating OS
12:11 DEMO: how to manually download KDK and install it.
15:26 If the Automatic Root Patcher system does NOT pop up after the 14.3.1 update
16:27 How to download the KDK when you don’t have wifi? Ethernet or USB copy
17:20 What to do if your Mac is stuck on a black login screen after the 14.3.1 Update?
18:21 Looking at the OCLP KDK GitHub site to find out what the latest KDK is
18:48 The KDK auto download system is downloading 14.3 Beta KDK issue.
20:01 If you have a beta version of the 14.3 KDK, how to install 14.3.1 KDK if you wanted to
21:13 Testing Sonoma 14.3.1 on a MacBook Pro 15-inch (Mid 2017)
21:38 Testing Sonoma 14.3.1 on a MacBook Pro 15-inch (Mid 2014)
22:42 Testing Sonoma 14.3.1 on a Mac Pro (Late 2013) - Had a few issues
23:06 Update on my macOS update Content Caching Server + future video
23:52 Testing Sonoma 14.3.1 on a Mac mini (Late 2012)
24:18 Testing Sonoma 14.3.1 on a MacBook Pro 17-inch (Late 2011)
24:30 Looking at the OCLP patcher log in /Users/Shared
25:30 Testing Sonoma 14.3.1 on a MacBook 13-inch (Mid 2010)
26:09 Other hardware models I should be testing? Mac Pro 2010? iMac?
26:25 Do I recommend installing the Sonoma 14.3.1 update?
27:27 Did you update to macOS Sonoma? Or are you going to wait?
28:03 Thank You!!!
The macOS Sonoma 14.3.1 Update was released on 2/08/24 @ 12:04 CDT
My macOS Sonoma 14.3.1 Update Article
https://mrmacintosh.com/macos-sonoma-14-3-1-update-23d60-whats-new/
Manual Kernel Debug Kit (KDK) download site
https://github.com/dortania/KdkSupportPkg/releases
Does your Unsupported Mac need the KDK Download?
If you have a Mac with a dedicated Intel GPU or Nvidia GPU, you do NOT need the KDK.*
You only need the KDK if you have an AMD GPU
*You also need the KDK if you have a Mac with a USB 1.1 Controller.
MacBook - Mid 2010 and older
MacBook Air - Late 2010 and older
MacBook Pro - Mid 2010 and older
iMac - Late 2009 and older
Mac mini - Mid 2011 and older
Mac Pro - Mid 2010 and older
Examples:
2012 Mac mini with Intel GPU? NO KDK
2013 MacBook Pro with NVIDIA GPU? = NO KDK
2013 Mac Pro with AMD GPU? = YES KDK
2011 MacBook Pro with AMD GPU? = YES KDK
macOS Sonoma Apple Patch notes
https://support.apple.com/en-us/HT213895
Apple Security Updates Page
https://support.apple.com/en-us/HT201222
Whats new for enterprise in macOS Sonoma
https://support.apple.com/en-us/HT213893
OpenCore Legacy Patcher link
https://github.com/dortania/OpenCore-Legacy-Patcher/
Apple KDK or Kernel Debug Kit manual download link
https://github.com/dortania/KdkSupportPkg/releases
Support Mr. Macintosh
https://www.patreon.com/mrmacintosh
http://paypal.me/mrmacintoshblog
Download Full macOS Sonoma Installers InstallAssistant.pkg
https://mrmacintosh.com/macos-sonoma-full-installer-database-download-directly-from-apple/
Download Full macOS Sonoma, Ventura, Monterey & Big Sur M1 M2 Apple Silicon IPSW Files
https://mrmacintosh.com/apple-silicon-m1-full-macos-restore-ipsw-firmware-files-database/
Links
https://MrMacintosh.com - Apple Mac Enterprise IT Blog & macOS News for MacAdmins
Twitter
https://twitter.com/ClassicII_MrMac
Subscribe to The Apple Ninjas YouTube! If it wasnt for him, I would not even be on YouTube today. Thank you!!!
https://www.youtube.com/channel/UCRddzq1GBchvbZqnVkioKnQ")
![[FIXED] An error occurred while preparing the installation! macOS Sierra Recovery Error!](https://i.ytimg.com/vi/Z9pK75VPJC0/mqdefault.jpg "[FIXED] An error occurred while preparing the installation! macOS Sierra Recovery Error!
Are you trying to install macOS Sierra from recovery or internet recovery and getting the error An error occurred while preparing the installation. Try running this application again ? I will show you 3 ways to fix the issue. NOTE: THIS IS A NEW ISSUE & NOT THE DATE & TIME OR CERT ISSUE! CHAPTERS BELOW
Instructions download URL
curl -L https://archive.org/download/sierraurl/sierra.txt
Youtube keeps cutting off the url, Ive added spaces below so you can see the url.
curl -L https:// archive.org / download / sierraurl / sierra.txt
If above command still does not show properly, visit my website fix link below
Main article link on now to fix the macOS Sierra Recovery & Internet Recovery
https://mrmacintosh.com/fixed-an-error-occurred-while-preparing-the-installation-macos-sierra-recovery-error/
0:00 Welcome and intro
0:30 MrMacintosh.com Article link
0:40 That is the root problem of this issue?
1:53 Quick review of the 3 different ways to fix this issue
2:07 Fix Option #1 Boot to a newer version of macOS Internet Recovery
2:28 Fix Option #2 Create and boot to macOS Sierra USB Drive
3:27 Fix Option #3 Download Sierra from Apple to recovery & use it to install Sierra!
3:35 Make Sure you are connected to WIFI or Ethernet Internet
4:10 Make sure your date and time are correct in macOS terminal with the date command
5:17 Using curl to download a custom instructions txt file to follow along!
6:30 Backup your hard drive data (if needed) & Erase Macintosh HD in disk utility
8:06 Downloading Sierra InstallOS.dmg from Apple.com via curl command
9:51 Mounting the InstallOS.dmg file
10:17 Installing the InstallOS.pkg file to get access to the Install macOS Sierra app
10:47 Kicking off the macOS Sierra installer with installassistant_springboard
11:12 DONE! Walking through the fresh installer.
12:07 Thank you!
Support Mr. Macintosh
https://www.patreon.com/mrmacintosh
http://paypal.me/mrmacintoshblog
Links
https://MrMacintosh.com - Apple Mac Enterprise IT Blog & macOS News for MacAdmins
Twitter
https://twitter.com/ClassicII_MrMac")
![Install Google Chrome OS Flex on Old Macs [2009-2015] MacBook Pro!](https://i.ytimg.com/vi/_62ryY4PjYY/mqdefault.jpg "Install Google Chrome OS Flex on Old Macs [2009-2015] MacBook Pro!
Did you know that you could install Chrome OS on your old 2009-2015 unsupported Mac? This is just another option along with OpenCore Legacy Patcher + Big Sur or Monterey or Windows 10 or Windows 11 to keep your old Mac running and secure!!! This video is a step-by-step guide on how to install Chrome OS Flex on your Mac! UPDATES & CHAPTERS BELOW!
0:00 Welcome and intro
0:29 UPDATES & Chapters Section
0:44 Why would you want to install Chrome OS on a Mac?
1:25 What are the Mac Hardware Requirements for Chrome OS Flex?
1:50 What do you need to Install Google Chrome OS Flex on a Mac?
2:39 Minimum Device Requirements for Chrome OS Flex
2:53 How to create a Chrome OS Flex USB Installer
6:58 Chrome OS Flex lets you try out the OS running off the USB
7:29 Note: have a USB installer of macOS if you want to roll back to macOS
8:00 Ready to reboot the Mac to Chrome OS Installer Hold down Option key
8:22 Select EFI Boot from the boot picker menu
8:55 The Chrome OS Flex installer is booted - Get Started
9:23 Starting the Install of Chrome OS
10:17 Install is complete, the Mac must be shut down and powered back up.
10:24 Powering the Mac Back on without the Chrome OS USB installer plugged in
10:38 Now we are at the Chrome OS Setup Assistant Window + Process
11:45 Booted to Chrome OS Flex on a 2010 Mac Mini!
11:57 Checking Wifi, BlueTooth & Sound Settings
12:47 Thank you!
Google Chrome OS Flex Installation Instructions
https://support.google.com/chromeosflex/answer/11552529?hl=en&ref_topic=11551271
Google Chrome OS Certified Hardware model list for Apple
https://support.google.com/chromeosflex/answer/11513094?hl=en&ref_topic=11618314#zippy=%2Capple
Installing macOS Monterey on your Unsupported Mac
Download Full macOS Monterey & Big Sur Installers InstallAssistant.pkg - https://mrmacintosh.com/macos-12-monterey-full-installer-database-download-directly-from-apple/
Download Full macOS Monterey & Big Sur M1 Apple Silicon IPSW Files
https://mrmacintosh.com/apple-silicon-m1-full-macos-restore-ipsw-firmware-files-database/
Support Mr. Macintosh
https://www.patreon.com/mrmacintosh
http://paypal.me/mrmacintoshblog
Links
https://MrMacintosh.com - Apple Mac Enterprise IT Blog & macOS News for MacAdmins
Twitter
https://twitter.com/ClassicII_MrMac
Interested in Xcode and Swift? Subscribe to the Swift Goose!
https://www.youtube.com/channel/UCeHYBwcVqOoyyNHiAf3ZrLg
Subscribe to The Apple Ninjas YouTube! If it wasnt for him, I would not even be on YouTube today. Thank you!!!
https://www.youtube.com/channel/UCRddzq1GBchvbZqnVkioKnQ")
![OpenCore Legacy Patcher 2.0.2 Update! [BIG FIXES]](https://i.ytimg.com/vi/beOvYXHVpmQ/mqdefault.jpg "OpenCore Legacy Patcher 2.0.2 Update! [BIG FIXES]
OpenCore Legacy Patcher 2.0.2 Update is live and includes some big fixes for macOS Sequoia! In this video Ill go over all the changes & fixes in this update along with testing 13 different Mac Models!. The OCLP 2.0.2 update supports Big Sur 11.7.10, Monterey 12.7.6, Ventura 13.7 & Sonoma 14.57 & Sequoia 15.0.
Hurricane Helene Disaster Relief Donations
https://www.usatoday.com/story/news/nation/2024/09/28/how-to-help-hurricane-helene/75431425007/
OpenCore Legacy Patcher website
https://dortania.github.io/OpenCore-Legacy-Patcher/
OpenCore Legacy Patcher 2.0.2 App download
https://github.com/dortania/OpenCore-Legacy-Patcher/releases
Support the OCLP Devs at Open Collective
https://opencollective.com/opencore-legacy-patcher
my OCLP Sequoia on Unsupported Macs full walkthrough video
https://youtu.be/rfa2aSm7OxQ
My OCLP Sonoma on Unsupported Macs full walkthrough video
https://youtu.be/eGR2qGw9lG8
Download the latest macOS Ventura Kernel Debug Kit (KDK)
https://github.com/dortania/KdkSupportPkg/releases
USB-A USB 2.0 HUB (My Amazon Affiliates link)
https://a.co/d/i7yNkXq
I want to thank both Mykola Grymalyuk (khronokernel) & Dhinak G (dhinakg) for your work on OpenCore Legacy Patcher + all of the contributing developers that help maintain the patcher! OCLP brings new life to thousands of Macs by saving them from the recycler!
SUPPORTED MAC MODELS LIST
https://dortania.github.io/OpenCore-Legacy-Patcher/MODELS.html
Having a issue? - OpenCore Legacy Support + Discord Server
https://discord.gg/rqdPgH8xSN
Support Mr. Macintosh
https://www.patreon.com/mrmacintosh
http://paypal.me/mrmacintoshblog")
