OPGELOST: Flickering Area On The Screen - MacBook Pro 13" Touch Bar 2019

Flickering Area On The Screen

I am not 100% sure the model as it is from a friend back in the UK, Has a Touchbar and I think it is a 2019 13" Pro, anyway, the lower left corner on the screen was flickering (Together with a vertical line down the center). yes we know it will need a new screen, but what would cause the flickering on an area at the bottom left corner 4-5com, a dirty connection? The rest of the screen is OK apart from the vertical line as seen in the video. The unit since the video was taken does not display anything at all at any angle or whatever, totally blank. I'm curious what causes the small flickering area. @danj for the info.

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Gepost: gisteren9 nov 2026

Opties

If you look along the bottom you can see a grey horizontal bar besides the vertical bar. This horizontal bar is a timing issue of the signal that is drawing the image.

The placement of the T-CON board which creates the signal is located at a hot location between the two heatsink radiators and there fans. So heavy processing loads as well as dust & debris clogging the cooling system tend to cook the T-CON causing signal drift.

Cleaning the fan blades and the heatsink radiator's fins can reduce the heat to stagnate and speeding up the fan's RPM can expel it. Then lastly making sure the vents aren't blocked. Sadly, often times replacing old the display is required to fix it ones it gets bad as the T-CON can't be replaced on its own.

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Thank you @danj I had a hunch it was to do with it never having a fresh thermal pasting and an internal cleanup..... I have forwarded the info to my friend and he will get someone to give it some attention and fingers crossed he can get a little more life out of it, enough time to make a back-up of his data etc.

gisteren9 nov 2026 door livfe Deel

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MacBook Pro 13" Touch Bar 2019

Flickering Area On The Screen

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