I have Probook 4540s by same config as yours.same cpu،wifi and ect.
I used your EFI folder to making bootable USB and installing Big Sur.
after installation I copy your EFI folder to EFI partition an dry to boot system without USB.
unfortunately my 4540s randomly goes to boot loop or kernel panic and I have to boot system using USB،after that if I restart laptop it boot normally.
I have to say that when I install Big Sur،my Bios version was F67 and after that Update it to F68 using a live windows USB،but no change in situations.(randomly kernel panic is still alive)
@nguyenhung9x2020
ostadnart
commented
3 years ago 
I have Probook 4540s by same config as yours.same cpu،wifi and ect. I used your EFI folder to making bootable USB and installing Big Sur. after installation I copy your EFI folder to EFI partition an dry to boot system without USB. unfortunately my 4540s randomly goes to boot loop or kernel panic and I have to boot system using USB،after that if I restart laptop it boot normally. I have to say that when I install Big Sur،my Bios version was F67 and after that Update it to F68 using a live windows USB،but no change in situations.(randomly kernel panic is still alive) @nguyenhung9x2020
Archive.zip