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1. #Mac os sierra reset to default keychain unable to obtain authorization for this operation how to
2. #Mac os sierra reset to default keychain unable to obtain authorization for this operation install
3. #Mac os sierra reset to default keychain unable to obtain authorization for this operation update
4. #Mac os sierra reset to default keychain unable to obtain authorization for this operation pro

The Target Mac MUST have the USB-C Cable Plugged in to the Left Hand side USB-C port. For Laptops the port closest to the back of the Mac or screen) For the Mac Mini it’s the port closest to the ethernet port. The Host Mac can have the cable plugged in anywhere. Apple notes that a Thunderbolt 3 to Thunderbolt 3 cable is not supported but I’ve tested it and it works fine. ( USB-C Cable MUST Support Power & Data). USB-C to USB-C Cable – The white Apple USB-C Charge will work fine. Internet access on the Host Mac – “You may need to configure your web proxy or firewall ports to allow all network traffic from Apple” The Host Mac must have at least macOS 10.15.6 and Apple Configurator 2.13.1 or newer installed. ( The Host Mac will do the work and the Target Mac is the Mac you need to Restore) You will need to meet the following requirements – Setup and Cable Requirements before you begin. This is a list of Apple Silicon Macs that this process is compatible with.ģ.

#Mac os sierra reset to default keychain unable to obtain authorization for this operation how to

If you are looking for my article on how to restore BridgeOS on a T2 Mac, I’ve linked it below.

#Mac os sierra reset to default keychain unable to obtain authorization for this operation update

UPDATE 11/17/20 –Added a new section #6 to explain the problem booting to DFU mode if your Apple Silicon Mac is on it’s factory firmware of 6723.41.11 If you are still running 2.13.1 or below you will get an error when you click the restore button. UPDATE 11/18/20 – Apple has released Apple Configurator 2 Version 2.13.2! Make sure you update. I’ve also added a new Apple Silicon Mac Mini M1 Video above. UPDATE 1/14/21 – Apple has released Apple Configurator 2 Version 2.13.3, be sure to update.

#Mac os sierra reset to default keychain unable to obtain authorization for this operation install

UPDATE 3/17/21 – I’ve added a new video that shows you how to use Apple configurator 2 to install macOS on multiple M1 Macs. UPDATE 4/13/21 – New DEEP DIVE video on using Apple Configurator 2 to reinstall macOS on multiple M1 Macs. UPDATE 6/04/21 – Added New 2021 24″ M1 iMac DFU Restore/Revive info! Troubleshooting DFU Mode & Firmware Update Problems

Can I Downgrade from an older version of macOS via IPSW Files? Begin Apple Silicon macOS Revive / Restore

#Mac os sierra reset to default keychain unable to obtain authorization for this operation pro

Instructions for the M1 13″ MacBook Pro & Air (2020) How to Boot your Apple Silicon Mac into DFU Mode Setup and Cable Requirements before you begin For one thing the ports used are the exact opposite of what was used on T2 Macs! Plus the process to get the Mac into DFU mode has changed! That’s why I’m writing this article, to better explain the instructions. If you thought booting to DFU mode was a little difficult on T2 Macs… wait until you try on Apple Silicon. Keep in mind, just like last time, some of the instructions for booting your Apple Silicon Mac are confusing. Use macOS Recovery on a Apple Silicon M1 Mac Apple Configurator 2 RESTORE option – This option will Reinstall macOS Recovery, ERASE your hard drive and reinstall macOS (Fast install! 10 min)

Apple Configurator 2 REVIVE option – This option will reinstall macOS Recovery if erased or damaged (retains user data on the hard drive) macOS Big Sur USB Installer Drive – External boot for macOS Installers is enabled by default on Apple Silicon – (Installs from USB 30-40 Min) System Recovery – (Separate hidden partition – Will boot automatically if macOS Recovery is erased or damaged) macOS Recovery – Hold down the power button to enter the Boot Picker Menu (downloads macOS Big Sur over the internet 1-2 hours) Order of that you should follow for reinstalling macOS on Apple Silicon. how-to-reinstall-macos-on-your-apple-silicon-mac-everything-you-need-to-know/

I wrote an article covering all the changes to macOS Recovery here. But if for some reason you are having problems with that you can boot your Apple Silicon Mac with a Big Sur USB installer drive. Your first line of defense for installing macOS on Apple Silicon should be macOS Recovery. This article will go over how to restore macOS on your new Apple Silicon Mac. How to Boot your Mac into DFU Mode With Apple Silicon Macs, you can install macOS just like you can with iOS! I will show you how to boot your Apple Silicon Mac into DFU Mode so you can Restore macOS. How to Restore BridgeOS on a 2018+ T2 Mac using Apple Configurator 2.