iMac 21" A1418 820-3482-A late 2013 Bios password removal

登錄/注冊后可看大圖 Hi i have a clients Apple iMac 21 "A1418 820-3482-A late 2013 Bios password removal, i do not have a clean bios to flash with. Does anyone know hoe to find the EFi password in the bin file? Also i have heard from other technician that all new 2013 Mac's have a problem with fans speeding up & with system running very slow after flashing with clean bios. If anyone has any knowledge please share how to fix & clean password from apple 2013 bios bin. Thank you