Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

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Battery Plate Causing Completely Black Phone

Today I was using my phone when all of the sudden my screen went black. I tried resetting it in DFU mode, error 4005. I read that the front camera could cause that issue, so I opened up my phone, naturally unplugged the battery and then the front camera. I replace the battery connector but not the plate over it. I was able to get my phone to restart back into working condition. I thought it was strange, but then replaced every connector and plate, to find my phone went black again. After more trial and error I found that it was my battery plate, that when I screwed it all the way down it would cause my phone to freeze and go black. Are there any solutions for this? Should I just not put the plate on? Or should I try something else? Any help is appreciated.

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Update: Apparently my phone becomes unresponsive when there is too much pressure being put on the battery connector, which happens when you put on the plate. If I press down on the connector without the plate, I get the same result. Does this mean I should just get a new battery?

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I've not had this issue arise in my repairs, but sounds like power being shorted to ground due to damaged FPC connector (or) the slight flexing of the board is causing a cold solder joint to separate. I don't think replacing the battery would fix the issue you mentioned. I would either take it to a repair shop to diagnose what is causing it due to there being a possible fire hazard. For now, I would definitely not tighten down the battery shield all the way or even cover it with electrical tape temporarily until you can have it looked at.

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