So I was going for hackintoshing my old laptop lenovo x220 tablet with
i5 2nd gen
4gb ram
250gb ssd
at first I tried and followed a tutorial for installing big sur did everything right but when I select the usb in bios it stuck on black screen then i tried it on my second laptop dell precision it booted then I did everything with high sierra but same problem is it because of my bios is set on both legacy and uefi and first priority is legacy my bios version is 1.31 so what is the problem here because if i did anything wrong the installer shouldn't have booted on my secondary laptop and yes i used the sandy bridge efi
thanks in adv