This is the original bios file with the efi lock.

I appreciate any help...

Hello everyone
Greetings from Ecuador.
I'm a repairman for a small business and I'm learning a lot with your help.

Hello everyone.
My Mac A1502, when I tried to remove the EFI, only turned on the fan, and flashing the original did the same. I thought I had damaged the BIOS memory, so I replaced it, but it's still the same; the BIOS is corrupted.
I edited and flash one of the ones in the thread, and turns on, appears almost at the end of the bar loading of OSX, but it won't let me install the system.
I need help.

Specs
MacBook Pro A1502 (820-3476-A)
EMC 2875
Serial C02N6HSTG3QH...