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Small "line" appearing on iMac screen

Just noticed a short line about 3mm in length appear on my iMac 27" screen. I tried restarting to see if it was just something corrupted on the screen from an app etc. But it's still there.


Someone said "it's a firefly" – are they joking?


Is there a remedy?


iMac 27″, macOS 10.14

Posted on Jun 29, 2020 12:55 AM

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Question marked as Top-ranking reply

Posted on Jun 29, 2020 10:35 AM

Thank you , as far as a remedy, you would need to take it to your local Apple Authorized Service Provider to get a diagnosis and quote for repair.

6 replies

Small "line" appearing on iMac screen

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