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Successed Optiplex 9020 updated from Big Sur 11.16.1 to Monterey 12.01 Based on @trs96 and @joostiphone posts: 1)update OC to 0.75 and all included kexts using HackinDROM (click here download), see attached pic; 2) Using OC Gen-X, select System Model iMAC17.1 generate Serial number, MLB...

Hello, I followed @trs96 generated Opencore EFI folder and configured its config.plist. Big Sur installed smoothly, Audio, iMessage, Sleep etc worked great! However, some apps like Minecraft (java version) and Ring (from App Store) displayed badly, see attached Pics. I thought this would be due...

Hello Everyone: I am using Clover 5070. Everything works perfect with 10.15.1. An update of 10.15.2 came up on System preference yesterday but not on App Store. When I clicked "update now", it restarted. After few times reboot, it is still keeping on 10.15.1, not updated. I updated Kext, but...

Hello Everyone! I have two Optiplex 9020 desktops in my home office. One is connected to Dell S2419HM (DP-HDMI), another is connected to Dell U2412M (DP-DP), as it is old monitor, no HDMI port. They were both worded perfect with previous Mojave. I clean installed them following the steps...