EFI Open core 6.4 Dell inspirion 3670 CPU: Intel core i5 9400 Audio: Realtek ALC891 Network: Realtek PCIe GbE Family controller Wifi: Qualcomm QCA9565 802.11b Fix done on Mac Big sur 11.1 + UHD Graphic 630 + Audio + Clan network Not working + Wifi + Sleep + D-sub port display