Efi Destroyer on MacBook Pro A1398 ??

Hey everyone,
ok so, i bought the EFI Destroyer a while ago and today I went on and tried it on a A1398 EMC 2910 and it doesnt seem to remove it...
Again, i never used it before so maybe im missing some steps?
I connect the USB cable to a Computer and to a regular charger ( I tried both methods because i though it maybe was low on power?) the LED goes red and yellow until i connect it to the MAC.
Once connected, turns green fast, then blue for a little while and the green fast as it should be...
Everything normal until now, but when i turn it on, its still asking for the password.....

Any ideas?

Thanks in advance

Password Recovery
Used by forensics teams and anyone that just wants to retrieve anything that has ever been lost on a Windows System. Can retrieve files even after partition changes or formatting... even writing 0's to your HD don't get in it's way