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
dan metz
Level 1 (2 points)

Q: Thunderbolt Firmware Update 1.2 reappearing. solution steps not working

i have run the firmware update twice, done the cited instructions and  Thunderbolt Firmware Update 1.2 Keeps reappearing.

anyone else not have this fixed by the solution steps given?

i'm on a MacBook Pro (15-inch, Mid 2012) running osX 10.11.3 (el Capitan) with a 27-inch Apple Thunderbolt Display.

thanks for any help!

MacBook Pro, OS X El Capitan (10.11.3), additional thunderbolt display

Posted on Feb 26, 2016 10:19 AM

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dan metz

Q: Thunderbolt Firmware Update 1.2 reappearing. solution steps not working

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  • by iDevice-a-licious,

    iDevice-a-licious iDevice-a-licious Jun 20, 2016 5:11 PM in response to dan metz
    Level 1 (4 points)
    Peripherals
    Jun 20, 2016 5:11 PM in response to dan metz

    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 6:27 PM in response to iDevice-a-licious
    Level 2 (470 points)
    Jun 20, 2016 6:27 PM in response to iDevice-a-licious

    I believe this link will provide some help not listed in the previously posted link. Firmware is picky about the conditions that need to be met for correct install. Try these tips in this Apple Support Tip:

    About Thunderbolt Display Firmware Update 1.2 - Apple Support

    Hope this helps!

     

    Cheers!!

  • by jndupuis1,

    jndupuis1 jndupuis1 Jun 20, 2016 7:11 PM in response to jndupuis1
    Level 2 (470 points)
    Jun 20, 2016 7:11 PM in response to jndupuis1

    Google Searched Apple Support. Here's the download link:

    Thunderbolt Display Firmware Update v1.2

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

     

    Cheers!!

  • by iDevice-a-licious,

    iDevice-a-licious iDevice-a-licious Jun 21, 2016 12:36 AM in response to jndupuis1
    Level 1 (4 points)
    Peripherals
    Jun 21, 2016 12:36 AM in response to jndupuis1

    Nope, tried everything listed on that page.  Have only 1 Thunderbolt display, and made sure to leave my laptop lid open and plugged in.

     

    The problem is that there IS no update listed for my system anymore, so even if I've met all the criteria for installing, there is *nothing* to install.  Software Update shows no updates available, however, all the firmware versions (main and micro) are still older, and the warning keeps popping up when I start my machine.

     

    And my laptop has been acting worse and worse as I plug it into the TB display.  It often won't even connect (i.e. ever get out of a black screen) until I reboot.  So I have a feeling this update would really help me... if I could get it to install.

     

    That's why I asked if there's a direct link to this update somewhere.  Or a setting/file I can change so that Software Update lists it again to install.

  • by jndupuis1,

    jndupuis1 jndupuis1 Jun 21, 2016 3:46 AM in response to iDevice-a-licious
    Level 2 (470 points)
    Jun 21, 2016 3:46 AM in response to iDevice-a-licious

    Here is the EFI and SMC Firmware Update - Apple Support READ CAREFULLY!

    Check to see if your Mac has it's latest Security Update as well in System Report, otherwise, you may need a Genius Bar appointment.

    Here's the EFI and SMC Link:

    About EFI and SMC firmware updates for Intel-based Mac computers - Apple Support

     

    Cheers!!