First, I would like to thank
@dosdude1 and
@jackluke for their incredible work and continuous support helping running a newer system on unsupported hardware.
I have a mid-2011 iMac (imac12,1) with a Radeon HD 4670 (it is enough for not having graphics glitches and transparency works) running 19H2, minus AirDrop (Atheros WiFi) and other stuff that relies on Bluetooth BLE. Even Apple TV video was working somewhat. I also applied
@highvoltage12v fixes for
QuickSync/SandyBridge (maybe it helped with Apple TV, I am not sure). Then I tried to use
CatalinaOTAswufix and it seemed to have applied the latest Security Update (2021-02-03 / 19H1009), but then entered boot loops even after re-applying Catalina Patcher post install patches. I could load Catalina in Safe Mode tho, so I re-applied QuickSync/SandyBridge fixes and I could boot back in normal mode. Patch Updater did its magic and I also used SilentKnight to update MRT. Maybe this helps someone else with trouble updating.
Thanks a lot again. Regards.
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