![]() Here are the instructions for the PRAM reset:Ī) Start the machine while holding down the Option-Apple-P-R keysī) Wait until you hear the 3rd startup chime, then let go of the keys and let the machine boot up. ![]() This will give you the needed EFI update for your logic board and allow you to run High Sierra on the Aura.Ģ) Then without any external drives connected to your Mac, install the Aura in the MacPro and do a PRAM reset on the initial boot. They say to install High Sierra but the only system I can get it is Yosemite.ġ) You will need to install High Sierra on your original Apple SSD. The only partition I see it is the "disk0-OsX Base System" which should be a sort of remote/virtual one. They say to use "view all" option in Disk Utility but the Disk Utility showing up in the reboot apple+R windows is an old one with no such option. My main problem is that Disk Utility doesn't see my freshly installed new SSD. The following ones are the istructions I received from the SSD producer in order to install it. I did check as per your tip, this is the outcome, is it correct for being a High Sierra User:īoot ROM Version: MBP12 BOOT ROOM 00 ![]() ![]() Thank you so much with your kind and complete answer.
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