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Switcher Hangout (Windows to Mac)
Thunderbolt Firmware update caused grey screen freeze
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<blockquote data-quote="chscag" data-source="post: 1325893" data-attributes="member: 46727"><p>If I remember correctly, Apple's instructions were not to shut off the machine while the firmware update was being installed. Firmware updates can be scary because they perform "brain surgery". However, since it appears the update was already finished when you powered off, you may have dodged the bullet. I'm not sure there is a way to check out if Thunderbolt is working correctly if you have no Thunderbolt devices to test with. If you're running Lion, I'm not even sure how to do a hardware test. I guess I need to explore that myself.</p></blockquote><p></p>
[QUOTE="chscag, post: 1325893, member: 46727"] If I remember correctly, Apple's instructions were not to shut off the machine while the firmware update was being installed. Firmware updates can be scary because they perform "brain surgery". However, since it appears the update was already finished when you powered off, you may have dodged the bullet. I'm not sure there is a way to check out if Thunderbolt is working correctly if you have no Thunderbolt devices to test with. If you're running Lion, I'm not even sure how to do a hardware test. I guess I need to explore that myself. [/QUOTE]
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Switcher Hangout (Windows to Mac)
Thunderbolt Firmware update caused grey screen freeze
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