HT201864: Apple Cinema and Thunderbolt Displays: How to find the serial number
Learn about Apple Cinema and Thunderbolt Displays: How to find the serial number
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Helpful answers
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Apr 28, 2014 3:27 AM in response to apd416by turbostar,★Helpfultry a different tb port and plug your monitor into a different electrical socket
if still nothing, call apple and/or store for an exchange
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Apr 28, 2014 3:59 AM in response to turbostarby apd416,thanks, I unplugged everything, and tried again. All working now!