A1502 EMC 2578 Firmware Clean Request (stumped)

Hello Team, typo EMC 2835, 2.9ghz 8GB 2015 model

Could I please have some help clearing this EFI lock, I have had multiple attempts without success

I have 

1. Altered my orginal bin files, adjusted the $vss out and replaced with FF as directed. Changed Serial

2. Used a clean EFI file from repository with original ME and new ME in conjunction with ME Analzer. changed serial.

3.tried to clear PRAM NVRAM after each attempt but only loads to "disabled try in 60 minutes: - There is no reset or double chime..

_Keyboard error_?

Done it many times before without hassle, so its fair to say im stumped

Here you go.

thankyou my friend, EFI is now bypassed but 1 issues, It incredibly slow and delayed.

i have to option for booting from external drive but it only gets to half way and even the powering on of the machines extremely slow.

So its clearly much better than it was but not quite right, also I went to verify the after programming and it said chip was in mismatch?

Kind Regards

Paul

ME Region most probably.

Can you help me please