10-14-2019, 04:00 PM #1
- Member Since
- Jan 23, 2008
- Keller, Texas
- Your Mac's Specs
- 2017 27" iMac, 10.5" iPad Pro, iPhone 7+, iPhone 8, Numerous iPods, Mojave
Mac Mini (Late 2018) users should refrain from upgrading to macOS Catalina 10.15.
- Rep Power
The following Apple Technical Service Bulletin has been released by Apple:
Apple Technical Service Bulletin
This document provides additional instructions for operating the Mac Mini (Late 2018) macOS Catalina 10.15
Mac Mini (Late 2018) users should refrain from upgrading to macOS Catalina 10.15. macOS Catalina - Apple
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance, or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Risks are inherent in the use of the Internet. Contact the vendor for additional information. Other company and product names may be trademarks of their respective owners.
Published Date: October 12, 2019
Apparently, the installation of Catalina updates the firmware of the Mini which in turn renders external monitors to no longer display the proper resolutions. Folks have reported that even reverting back to Mojave does not cure the problem because of the new firmware which stays with the Mini.
If you have not installed Catalina and are thinking about it and own a 2018 Mini, hold off until Apple provides a fix.
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