macbookpro firmware update

davewdent · davewdent #1 (**permalink**)

02-10-2012, 03:53 PM

While the firmware update was installing we had a power cut and so interrupted the install.

In an attempt to re-download I have downloaded the MacBook Pro EFI update from the apple website, but when I try to run the pkg. I get the message "This software is not supported on your system"

Help please!

chscag · chscag #2 (**permalink**)

02-10-2012, 10:48 PM

Do you have a backup? Losing power during a firmware update is usually not good since interrupting it can cause system problems. What I don't understand is why your MBP didn't proceed with the update on battery?

Try this first: Reset your PRAM. Then try to re-download the firmware update. Also make sure you're trying to install the correct update.

davewdent · davewdent #3 (**permalink**)

02-11-2012, 10:48 AM

Thanks for the reply.
During the upgrade I was using a cinema display connected to the MBP in clamshell mode.. Obviously the display went off with the power, so I didn't see if the update completed.
Afterwards my MBP was incredibly slow and so I put it down to the upgrade failing. However after reparing permissions all is OK.

chscag #2 (permalink)
Member Since: Jan 23, 2008 Location: Fort Worth, Texas Posts: 42,586 Mac Specs: 27" iMac i5, 3.2 GHz, iPad 3, iPhone 5c, 3 iPods, Yosemite	02-10-2012, 10:48 PM Do you have a backup? Losing power during a firmware update is usually not good since interrupting it can cause system problems. What I don't understand is why your MBP didn't proceed with the update on battery? Try this first: Reset your PRAM. Then try to re-download the firmware update. Also make sure you're trying to install the correct update. COMMUNITY RULES Writing a Quality Post
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davewdent #1 (permalink)
Member Since: Feb 10, 2012 Posts: 2	02-10-2012, 03:53 PM While the firmware update was installing we had a power cut and so interrupted the install. In an attempt to re-download I have downloaded the MacBook Pro EFI update from the apple website, but when I try to run the pkg. I get the message "This software is not supported on your system" Help please!
	QUOTE Thanks

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