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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Helpful answers
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Jun 26, 2015 4:40 PM in response to bk256-1by Yorb,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).
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Jun 20, 2016 5:34 PM in response to bk256-1by iDevice-a-licious,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?
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Jun 20, 2016 6:44 PM in response to iDevice-a-liciousby jndupuis1,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!!