I have a 3GS bootloader 6.4, baseband 05.13.04 . I used Redsn0w 0.9.9b9d built a custom no BB build for an old bootrom uploaded with no issues. When restarting without tether the phone wants an AT&T SIM? Is this normal. When trying a tethered reboot it asks for a nonexistent iphone2,1_5.0.1_9A404.ipsw file.
Is the issue just that I do need to re-initialize once with a real authorized SIM or is it still and other problem? Thanks