Display "Dot" but is not a dead pixel

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iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013

Model A1418 / Late 2013 / 2.7 & 2.9 GHz Core i5 or 3.1 GHz Core i7 Processor

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MasterG @mgbassdat

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发帖于: 2021年4月20日

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Display "Dot" but is not a dead pixel

Well,. i recently changed my hhd for an ssd, and i am pretty sure that the display assembly was never touched because i was there during the whole process… but right now there is a stain in my display… Any suggestions?

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Nethaniel Weil @ngw1031982 声誉积分: 47 3 2 · Answer 1 · 2021-04-20T07:49:02-07:00

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Nethaniel Weil @ngw1031982

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This looks like one of three things :

Assuming that the display is lit with LED’s, it looks like one or a couple LED’s burned out.
It could be a locked or stuck pixel , to which I would use UDPixel to run the undead pixel dot at a space of 5x5 and move the flashing dot where the spot is for a few minutes.
Finally, it could be a dead pixel with no real solution, and you can either accept it, or look into replacing the monitor.

All of this is given without any guarantee of fixing the issue, and is my personal opinion.

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iMac Intel 21.5" EMC 2638 & EMC 2742 Late 2013

Display "Dot" but is not a dead pixel

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