04-09-2013 04:33 AM
I'm unable to upgrade firmware on mac mini without cd-rom.
I trying to burn iso image to usb stick via disk utility but getting folowwing error:
"Could not validate source - Invalid argument"
Can you provide correct iso or dmg that can be used with mac disk utility because seems i haven't a way to upgrade ssd firmware now?
P.S. i tried unetbootin on win and mac, tried to copy iso content with dd in terminal but mac still can't see my usb stick on load.
Solved! Go to Solution.
04-09-2013 06:42 AM
I had the same problem. I was never able to get the USB stick method to work. I got an external CD/DVD drive and was able to boot that, but I could not get it to recognize my wired Apple keyboard. However once I switched to a wireless Apple keyboard, everything worked.
04-16-2013 07:25 AM - edited 04-16-2013 07:25 AM
After dozen on solutions i finally took ssd from my mac mini, put it into HP laptop with cd-rom, upgrade firmware and put back into mini. Thanks apple for sucky usb loading support and sandisk for silence...