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Newbie
Posts: 2
Registered: ‎04-09-2013
Accepted Solution

Unable to upgrade firmware on mac mini without cd-rom

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.

Newbie
Posts: 9
Registered: ‎01-27-2013

Re: Unable to upgrade firmware on mac mini without cd-rom

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.

Newbie
Posts: 2
Registered: ‎04-09-2013

Re: Unable to upgrade firmware on mac mini without cd-rom

[ Edited ]

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...