I think I made good progress, but still stuck with some issues. I've tried couple of EFIs with bootpacks as suggested, howewver I could not even pass Clover, my laptop just kept rebooting.
The EFI pack, which worked for me pretty well is from
It got installed almost perfectly, most features work:
ethernet, wifi, brightness, touchpad, keybpoard, usb ports
The following do not work:
audio, sleep/wake,sd/card
I tried some of the suggested remedies for the sleep problem, by turning off hibernation, regenerate kext cache. I think my BIOS is correct, UEFI, ROM enabled, TPM off, SATA in AHCI.
I might have more trouble by using a EFI pack for a different kind of laptop, but I'd appreciate any suggestion.
debug_22077.zip