Apple Firmware Restoration CD

Posted on 2011-03-19
Last Modified: 2012-05-11
My iMac boots up and shows the grey progress bar (firmware update bar). But it never finishes it stops and the bar resets itself. I've tried looking for a Firmward Restoration CD for my iMac but Apple don't have a download for my model. Can you help me fix a failed firmware install my Mac is unusable. :(

My imac is 21.5" 3.06GHz intel core I3 processor (model A1311 or model identifier imac 11,2).

Here's the info on Restoration CD:

Here's the latest version I could find but none of them seem to list my model of iMac:
Question by:kiloelectronvolt
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LVL 83

Expert Comment

by:Dave Baldwin
ID: 35172535
If you have an Apple Store near you, they can probably fix you up.  There are several kinds of problems that I send my Mac customers to the Apple Store to have fixed.  This would be one.

Author Comment

ID: 35172552
It's for a friend and that's a complete last resort as it's a large iMac plus they don't have an Apple Store nearby. Why do the Firmware Restoration CD only go up to version 1.8 and not cover all models? Do the later ones include the firmwares for the older models?
LVL 83

Expert Comment

by:Dave Baldwin
ID: 35172590
I don't know, I always tell people to go to the Apple store for those things.  In my area, I also have an authorized Apple repair place that is also very good.  If no one else has a better suggestion in a while, you should click on "Request Attention" above and get some others to look at your question.
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LVL 43

Expert Comment

by:Davis McCarn
ID: 35180577
According to Apple, there is no firmware update for your model (as of Feb 4, 2011):
But; the instructions also say you must be using a genuine Apple keyboard, should disconnect all other USB devices, and the drive must be using a standard Apple partition.  Pray a little and make sure those requirements are met.

Author Comment

ID: 35182879
Thanks Davis,

So what would be the method to fix this model, which Firmware Restoration CD version should be used?


Expert Comment

ID: 35194959
Was it an EFI update or SMC update?  If it was an SMC update you could try reseting the SMC to clear it, turn it off, unplug the mac, hold the power button for 5 seconds. wait 10 seconds, plug it all back in and reboot.

Can you boot to the Hard Disk load screen hold down the Option key?  If so try booting to an external drive and re-applying it from that.  The drive you run the firmware update from needs to be GUID format.

Otherwise, you could try the following with FW CD 1.8 or 1.9, (even though it says is for Mac Pros) as the next step is taking it to Apple for repair / likely a logic board replacement as they don't generally re-flash EFI / SMC at service centres.

Turn on the computer and continue holding the Power button. The sleep LED will blink rapidly, then slowly, then rapidly (3 quick blinks, 3 slow blinks, 3 quick blinks).

On Macs that don't have a sleep LED, tones are used instead. Hold down the power button until you hear 3 long tones, then 3 short tones, then 3 long tones.

Insert the Firmware Restoration CD while the lights are blinking or tones sounding, then release the Power button. A long tone is played once the recovery process has started.


Accepted Solution

kiloelectronvolt earned 0 total points
ID: 35339640
Customer took the computer to Apple Store and they sorted it.

Author Comment

ID: 35339641
LVL 83

Expert Comment

by:Dave Baldwin
ID: 35339673
Sounds to me that they did what I suggested.  ??

Author Closing Comment

ID: 35364822
None of the solutions worked.

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