Unlock Bios Password Macbook A1989 efi pin

[ElectronicaHN]

Hello, can you help me remove the EFI or BIOS lock from this Mac?
I attach the file.
Thanks for your help.

my board is: 820-00850-A
SN:C02YJ1YWJHD3

 

[Salimeh Bolboli]

You need to program BIOS

https://dr-bios.com/attachments/apple-a1989-820-00850-a-bios-zip.47355/

 

[ElectronicaHN]

You need to program BIOS

https://dr-bios.com/attachments/apple-a1989-820-00850-a-bios-zip.47355/

The file I sent you is BIOS but it is damaged, right?

 

[Vahab Hemmati]

yes
program new bios

 

[ElectronicaHN]

You need to program BIOS

https://dr-bios.com/attachments/apple-a1989-820-00850-a-bios-zip.47355/

I already wrote the file you sent me, but I did it like I write the unlocked bin file.
I don't know if it's the same as programming the BIOS?
But with that file it doesn't turn on, only with the backup locked.

 

[ElectronicaHN]

yes
program new bios

With the same program that I used to make a backup as I always do.
After reading and saving the backup, do I delete the BIOS and write a new file?

 

[Vahab Hemmati]

just program new bios file bro !

 

[ElectronicaHN]

You need to program BIOS

https://dr-bios.com/attachments/apple-a1989-820-00850-a-bios-zip.47355/

is this the new one?
no efi pin anymore?
If it is this one, I already programmed it and it does not turn on with this one

 

[Vahab Hemmati]

send main 4MB bios backup

 

[ElectronicaHN]

send main 4MB bios backup

I think the file is damaged because it doesn't start, it just keeps loading on the Apple and doesn't finish starting.
Do you have a bios bin from another one that we can use?

 

[Salimeh Bolboli]

I think the file is damaged because it doesn't start, it just keeps loading on the Apple and doesn't finish starting.
Do you have a bios bin from another one that we can use?