A new display fault that has been dubbed “Dustgate” is plaguing several MacBook Pro models.
The issue, which causes purple vertical lines to appear on screen when the MacBook lid is open at a certain angle, has been seen on several MacBook models, according to repair specialists.
“It’s a common problem, we get several of them a week,” 
An example of a faulty flex cable and how it affects the display.
The problem appears to arise from the screen flex cable, which connects the display to the main body of the laptop. At the hinge point between the screen and keyboard there’s a gap that can collect dust and dirt. Debris then gets onto the cable and, through opening and closing the lid, damages the cable over time.
The DustGate issue is typically over $500 to fix, which exceeds the system value due to overpriced display assemblies & depreciation.
Apple needs to but has not currently accepted responsibility, which is not surprising considering that FlexGate issues with the 15″ model never got a repair program either.
Mr. Robot offers concierge service for this issue, for more details, scroll past the video.
Also see: FlexGate: Intentional Widespread Display Failure
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