Apple Released Thunderbolt Firmware Update for Mac OS X 10.6.8, which provides Thunderbolt and fixes stability performance of system. When your system Restarts with gray screen will appears with a status bar to indicate the progress of the update.Please keep this in mind, Do not disturb or shut off the power on your computer during this update unless and untill it will affects your systems.
About Thunderbolt Firmware Update
This update provides Thunderbolt performance and stability fixes.
When your computer restarts a gray screen will appear with a status bar to indicate the progress of the update.
Do not disturb or shut off the power on your computer during this update.
Download Thunderbolt Firmware Update.
To Download Thunderbolt Firmware updated your Mac Os should be updated with Mac OS X 10.6.8 and which will required 486 KB obly to store on your system.