imac a1224 (820-2143-a) ati radeon hd 2600 xt 256mb ec 128KB BIOS https://vinafix.vn/threads/imac-a1224-820-2143-a.15865/#post-36083
with that BIOS is on white screen. with the original bios this does not happen to me can someone remove the efi password?
yes with the original firmware. with the other firmware the white display remains the chime and no boot no recobery mode