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CPU - Intel i7-8650U GPU - Intel UHD 620 / Disabled dGPU in bios RAM - SK Hynix 16GB 1867MHz Network - 88W8897 Avastar 802.11ac Wireless Audio - ALC298 Input - HID Keyboard/Mouse SMBIOS - MacBookPro15,2 OS - Monterey 12.5 When the device-id is '16900000' dummy number. Graphics showing as 'Intel UHD 620 26 MB' Cannot boot into macOS when using '16590000' from Dortania Guide. I have also tried AAPL,ig-platform-ids 00001B59 (current), 00001659, 0000C087 without success. Tackling the graphics issue first but there are other issues such as wifi, bluetooth, sound, dual battery which I'll create another post for unless I manage to figure it out first. Any help would be much appreciated. Thanks SB15.IOREG EFI.zip