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Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

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Phone with dim backlight with a glitchy toughscren

Ok so I have a white iPhone 6 passed down through the family. Before I received it, it had a cracked screen so the screen got replaced. However when I got it, the screen had blue/white bars going down on the right side of the screen and would get more noticeable depending on I believe the operating temperature of the phone. In addition sometimes, the touch screen would freak out and open up random apps. So I got the essential electronic repair kit from ifixit in order to try and fix the issue. I first tried to see if one of the connectors wasn't fully plugged in which wasn't the case. Then I and somebody else tried using rubbing alcohol I believe, on a piece of cloth to clean up any potential dust on the connectors. That ended up fixing the white/blue bar issue. However, the glitchy touch screen remained and the screen's backlight malfunctioned and currently can only deliver a minimal amount of backlight(Like 1/3 brightness at max). What I want to do now is buy another replacement screen to see if that will fix all the problems. However I am not sure whether the problem is with the screen connectors or the ports on the main body?

Answered! View the answer I have this problem too

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The 30% backlight issue is usually logic board related.

However, seeing as how all of this occurred after the screen replacement, I would suspect a defective or poor quality screen first. Is the original, cracked screen still available? If so, I would install it to see if the problems go away. That would confirm or not if the issue is screen related or logic board related.

If the original screen shows the same symptoms, then your device will require a micro-soldering repair and it is not a DIY fix.

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6 Comments:

Could all these issues of been because I forgot to unplug the battery which I may have done a couple times?(I'm referring to the 30% backlight issue)

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This is usually a burned coil and yes it could be caused by not disconnecting the battery.

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So I can fix the backlight issue by replacing the screen?

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No, I said the 30% backlight issue is usually logic board related.

I think you need to re-read my answer ;>)

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Ok, what about the glitchy touch screen? Any way to fix that?

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