Help with MacBook EFI hashes

I am looking to crack an efi hash, I have been reading a lot online and just find services, I was wondering on how to crack the 33 diget hash, I know part is only the password, I am looking for some guidance if anyone knows anything it would be appreciate, Thanks again

Its a newer 2013 macbook air and teensy doesnt seem to work due to the time disabled by the device. Unless there is some sort of bypass for that, reading i heard someone say that changing the keyboard or something of that sort could change the disabled time, I didnt find anything online.

Again thank you