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The Xiaomi Mi 8 Android smartphone was produced by Xiaomi, Inc. and launched in June 2018.

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Faulty screen (Green vertical lines - faulty spots)

Hi Guys.

I’ve dropped my phone in multiple occasions lately, and i noticed some green vertical lines on the right edge of my screen (1-2 pixel thick).

I could make them disappear by just fidgeting a bit with the bottom-right corner of the screen, and they would eventually reappear as some pressure is applied in that place.

The problem is that “the thing evolved” in a way that now, applying a medium-strong pressure in the bottom-right corner of the screen, makes it completely power off (let’s say you’re registering a voice not on whatsapp/telegram, if you apply too much pressure the screen turns off and the voice note gets stopped) and it powers on again when i stop pressing on it.

With these issues, i think i should just need to swap my screen,

BUT, i found out that the bottom-right corner screen adhesive doesn’t stick anymore, this lets me to stick something very thin in it almost as if i was starting to remove the whole screen. In this position, with the screen slightly out of the case, there is no green line, nor the screen powers of if I apply pressure.

I’m too afraid to remove the screen and test further since i don’t have the adhesive to put the screen back, and i’d like to teardown the phone just in case of a screen swap (and also a battery) since i’m not to experienced and wouldn’t like to open and close it multiple times.

Do you think that the clue of the raised screen can be of any help, or should i just swap it once and for all?

Contestado! View the answer Yo también tengo este problema

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@rootkind go ahead and swap the whole display assembly. you most likely do not have the right tools etc. to do a “glass only” repair

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So, the fact that when the screen is raised i don't see any issue isn't helpful anyway

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@rootkind not really since it still leads back to the display assembly having some issues. You can and should of course check the ribbon cables and connectors just to make sure those are not damaged in any way but ultimately I'd still replace the display first.

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