Hi friends priorities. I have completed Big Sur Installation on DELL Inspiron 5490 with your help.
- OpenCore 0.8.0 - Model: Dell Insprion 5490 - Processor: Intel i3 10110U - Graphics: Intel UHD 620 - Sound Card: Realtek ALC3204 - RAM: 8GB 2666Mhz - Disk: 240GB NVMe SSD - Network Hardware: Realtek 8111
My BIOS Settings
After resetting the settings to factory settings, just make the following settings, I just changed them
- Sata Mode: AHCI
- Secure Boot: OFF
- Fast Boot: Minimal
Everything works except the internal microphone, the internal microphone issue can be fixed with the AppleALC version update or you can continue on your way with the mini usb microphone.
You can install with the EFI folder I will give below, if you wish, you can do it with OpenCore on the image available in the forum. I pasted the apple logo sticker on the back and it looked great.