OpenCore bootable Big Sur EFI partition for ASUS x550LC
- donwload the Olarila BigSur image
- create bootable usb using balenaEtcher software
- mount the EFI partition of the usb using Minitool Partion Wizard.
- copy the above EFI folder to EFI partion using explorer++ software (run as administrator)
- boot from UEFI usb procede with the normal mac installation