Hi, Please help me with this one. some kind of marks( looks like watermarks from inside the screen) came on the screen overnight, was perfect before. but not sure what it is? please help.
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Fortunately this is a pre retina machine. You can just replace the screen for about $80
https://www.ebay.com/itm/LCD-Screen-for-...
Here's how to do it:
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Here's the IFIXIT LCD screen only: MacBook Pro 15" Unibody (Late 2008 - Late 2011) LCD Panel
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Well, I've seen some strange display issues your's takes the cake!
Somehow the displays cell's broke down, this is were the Thin Film Transistor (TFT) within the LCD has failed. Whats weird here is the grouping of the failed cells is so scattered. Did something hit your display at some point? It could have been a while ago. This damage is within the sandwich of the LCD so you can't fix it.
Here's a bit more on your display technology: Thin-film transistor liquid-crystal display
Sadly you'll need to replace your display assembly to fix this. Here's the IFIXIT guide: MacBook Pro 15" Unibody Early 2011 Display Replacement and here's the needed part: MacBook Pro 15" Unibody (Early 2011-Late 2011) Display Assembly
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3 Comments
Take another set of pictures with a full white background as well as a full black and paste them here for us to see.
@rabinshrest3 - Follow this guide to post them: Adding images to an existing question
by Dan
Never seen it before without any external cause. It seems beyond repair though..
by arbaman
Test it with an external monitor and see if it persists. If so this may be a failing GPU.
by mayer