MacBook Pro Retina 15 2012 with dead dGPU brightness

Is there any fix for the brightness control for 2012 Retina MacBook Pro? I tried using older AppleMuxControl from Sierra, but it didn't work, unfortunately, but it did work in Catalina. I tried to use software demux for the 2011 MacBook Pro, which allowed me to boot, but the brightness controls were still broken.

submitted by /u/AwayTranslator6580
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