I have ended up with a firmware locked imac(unaware when bought) I hvae the serial number If anybody is worried if it might be stolen,I have learning disabilities which makes matters more difficult with my endeavours.
Im attempting firmware brute force with this script from here: https://forums.hak5.org/index.php?/topic/30055-payload-optimized-android-pin-cracking-script/
DELAY 150000 STRING 1234 DELAY 100 ENTER DELAY 14000 STRING 0000 DELAY 100 ENTER DELAY 14000 STRING 1111 DELAY 100 ENTER ect...
after each entry the mac takes a while to actually enter hence the long delay between each, my issue is it enters the first pin,then only 1 digit in the next(a timing issue?) I have altered timing in a few places but to no success,ALSO If any one can help me generate the ducky script for 0000-9999 pin brute force I would be very greatful as producing the script myself is becoming to much of a challenge