HT203758: Thunderbolt Firmware Update 1.2: Keeps reappearing and Thunderbolt ports and Target Display Mode may not work

Learn about Thunderbolt Firmware Update 1.2: Keeps reappearing and Thunderbolt ports and Target Display Mode may not work
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Q: Update Firmware 1.2 keeps appearing

I have tried the recommended procedure but the app store continues to keep wanting me to update.  The Display appears to have the correct firmware version installed.

MacBook Pro with Retina display, OS X Yosemite (10.10.1)

Posted on Nov 20, 2014 6:05 AM

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Q: Update Firmware 1.2 keeps appearing

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  • by Yorb,

    Yorb Yorb Jun 26, 2015 4:40 PM in response to bk256-1
    Level 1 (0 points)
    Jun 26, 2015 4:40 PM in response to bk256-1

    I have this problem too, just wanted to add that I only see the update available when plugged into this particular Thunderbolt Display (and even then, not 100% of the time). I have the exact same model (27") at work, and if I check for updates when that display is connected, or when no displays are connected, I never see the 1.2 update.

     

    In addition, this display has other problems, such as occasionally just turning off (going black).

  • by iDevice-a-licious,

    iDevice-a-licious iDevice-a-licious Jun 20, 2016 5:34 PM in response to bk256-1
    Level 1 (4 points)
    Peripherals
    Jun 20, 2016 5:34 PM in response to bk256-1

    Same here - fails to install, and never shows up again under Updates in Software Updates.

     

    I checked and I do NOT have the correct firmware or micro port firmware.

     

    It keeps complaining that it failed to install, but there is no option to install it from within Software Updates.

     

    Is there a direct link to this update somewhere?

  • by jndupuis1,

    jndupuis1 jndupuis1 Jun 20, 2016 6:44 PM in response to iDevice-a-licious
    Level 2 (470 points)
    Jun 20, 2016 6:44 PM in response to iDevice-a-licious

    I posted this link in another dated post:

    About Thunderbolt Display Firmware Update 1.2 - Apple Support

    Here's some tips in this Apple Support Doc that the other Doc does not provide. Firmware is very picky about the conditions for install.

    Google Search Apple Support here you are:

    Thunderbolt Display Firmware Update v1.2

    YOU MUST MAKE SURE ALL CONDITIONS ARE MET FOR UPGRADE. DO NOT DISTURB OR POWER DOWN DURING ANY FIRMWARE UPDATE!

     

    Cheers!!