terrie_808

Q: Thunderbolt firmware update 1.2 continues to fail on MBP

For months I have been repeatedly asked via software update to run the Thunderbolt Firmware Update 1.2. The update gray screen shows up, but before the status bar can complete, the computer restarts. Other users have gotten relief with unplugging their usb and thunderbolt devices but I have no such devices attached to my computer. Anyone else?

iPhone 6, OS X Mavericks (10.9.5), MacbookPro, Mac Mini, iMac,

Posted on Jan 9, 2015 9:55 AM

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Q: Thunderbolt firmware update 1.2 continues to fail on MBP

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  • by sterling r,

    sterling r sterling r Jan 11, 2015 9:20 AM in response to terrie_808
    Community Specialists
    Jan 11, 2015 9:20 AM in response to terrie_808

    Hello there terrie_808,

     

    If the update still seems to not be taking for your Thunderbolt Display, I would like to recommend the troubleshooting in the following article to help you get that resolved, named:

     

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

    After installing Thunderbolt Firmware Update 1.2:

    • Thunderbolt ports may not work.
    • Target Display Mode may no longer work.
    • The update may keep reappearing as available for download. 

     

    This occurs when a self-powered Thunderbolt device (other than a directly-connected Thunderbolt display) is connected to a Thunderbolt port while installing the update.

    To resolve this issue:

    1. Shutdown your computer.
    2. Disconnect all Thunderbolt devices.
    3. Wait 10 seconds.
    4. If you are using a Mac mini with a Thunderbolt display, reconnect the Thunderbolt display directly to your computer via the Thunderbolt port. Do not connect other Thunderbolt devices at this time.
    5. Restart your computer.
    6. If the Thunderbolt Firmware Update 1.2 is offered, download and install it and restart your computer when asked. If the Thunderbolt Update is not offered, the update has installed correctly.
    7. Reconnect all Thunderbolt devices.

     

    Thank you for using Apple Support Communities.

    Take care,

    Sterling

  • by terrie_808,

    terrie_808 terrie_808 Jan 12, 2015 9:42 PM in response to sterling r
    Level 1 (45 points)
    Jan 12, 2015 9:42 PM in response to sterling r

    I have no usb or Thunderbolt display or peripherals attached.

  • by sterling r,

    sterling r sterling r Jan 14, 2015 2:15 PM in response to terrie_808
    Community Specialists
    Jan 14, 2015 2:15 PM in response to terrie_808

    Thank you for using the Apple Support Community. Due to the nature of your issue you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action.