Released on September 19, 2014, this 5.5" screen iPhone is the larger version of the iPhone 6.

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iPhone 6 plus display very hot after repair

I have just changed my iPhone 6 plus display, i changed the full assembly. The iPhone is definitely very hot at the right hand side of the display towards the top. Its heats up in the area after seconds of light use. Only thing i can think of is maybe front camera and that i should transfer over original camera. Can anyone think of anything else...

Also is there any tricks to get fingerprint working again. I have re-used original home button but saying failed when try to activate it...

And thirdly the display is on quite firmly and pushed down as tight but if you look very closely or run your hand round edges you will see the display is slightly raised from the chassis. Ive seen this on a previous repair and inclined to think these aftermarket screens are not just as good a fit as originals...

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UPDATE, I've just swapped over front facing camera assembly but still remains hot and also battery is def draining quicker....anything else that could be causing these issues,

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Based on your comments, I would suggest that you have a poor quality replacement screen. The "already-installed" small parts (front camera and sensors) will be even poorer quality. Your original idea that it was the FCAM assembly was good but now that you have isolated it, I think it is just the backlight that is draining too much current.

Put back your original screen to test. If it is not draining the battery, then the problem is the replacement screen assembly.

As for TouchID, as you noted, you have to migrate the original button. You may have damaged the very fragile flex cable or the Home Button extension flex cable (that runs underneath the LCD shield plate). Do a thorough visual inspection, preferably with magnification. It only takes a tiny tear to render the Touch ID useless. Depending on the tear, it may be possible or not to repair.

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