Thunderbolt Display USB and FaceTime and Audio not work after firmware 1.2 update
I see lots of the symptom here. Here is mine:
After update to firmware 1.2, recent I woke up my Mac, Everything but display is gone from my Thunderbolt Display.
My Mac is MacBook Pro 13 inches with retina display and OS X Yosemite 10.10.1.
What still works?
- Charging, LED on Magsafe works.
- Display, the monitor works as usual.
What do not works?
- Audio, output/input device do not show on System Preference.
- Brightness adjust: F1 and F2 do not work anymore.
- FaceTime Camera is gone, even Skype cannot detect that.
- Firewire 800, Ethernet, USB ports not work.
What proofs the hardware is ok?
- When I unplugged the thunderbolt connector from my Mac, the USB works, to charging my iPhone.
- When I boot with Windows 8.1 from Bootcamp, Windows can detect my Thunderbolt display audio, but the sound is very tiny. Ports and FaceTime do not work.
What I've tried?
- SMC reset,
- PRAM reset,
- Hardware test,
- unplugged everything from TBD for whole night.
- Switch to my Mac mini, same issue.
I guess there's no problem with the hardware, but after sleep, the firmware locked something in the sleep statues permanently. I use my TBD for two years and out of warranty, It seems cost $500+ to replace the logic board. Waiting for firmware 1.3 and pray for fix.
Thunderbolt Display (27-inch), OS X Yosemite (10.10.1)