HT202731: Using Apple Diagnostics
Learn about Using Apple Diagnostics
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Helpful answers
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Dec 3, 2014 11:01 AM in response to EmPuahby Allen A,Hello EmPuah,
The article linked below details a number of troubleshooting steps that can help resolve issues with your display.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/en-us/HT201177Cheers,
Allen
