My MacBook Pro efi password lost
from 1 year back i buy MacBook Pro used, now i replace my hard from 500 GB to 1 TB and i press on tab button because choose DVD for installing new mac OS but ask from me password and i didn't it
what can i do
and i try to remove 1 ram and open how i read in sire but its not help
if i change bios chip will normal work or what can i do plz help me i need it in my word
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