Hi, I have a Lenovo Ideapad s540 with i5 8265U Coffee Lake chipset with Intel UHD 620. I tried all the available resources for building my EFI but failed for 2 months straight. So please could you help me out with my EFI. I have encountered all the possible errors in the past. I have a robust and stable Catalina installed using Clover 5119, but I failed upgrading up to big Sur with Clover and OC as well. I even tried to go through a bootable USB but didn't work out. So anyone's help would be Superb...????
Thanks.