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Apple iPhone 7 Plus - Logicboard dead?

Hello everybody,

I got an iPhone 7 Plus, which felt down from an carousel.

From this point on, the phone doesnt work anymore.

I replaced battery, LCD screen & dock connector, but I get the following reaction:

The logicboard gets very very hot but it the screen wont turn on and just keeps black.

It also cant be found on iTunes.

I can turn it on by Power-Button, but thats all I can do.

I only know by the temperature, that it turn on.

Maybe anyone of you have a suggestion for me, what I can try.

Best Regards

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It needs looking at by a logic board specialist.

The heat indicates an electrical short somewhere on the logic board.

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Its not an original battery, maybe this causes the heat?

I also got the original battery, it smells like it lithium, maybe the old battery killed the logic board, is that possible?

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No, it's not the lithium. I've seen this before, but I haven't found the answer

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Thank you very much!

Do you got any suggestions I can do without an logic board specialist?

I tested it also with the old battery and I think it gets warms (normal temperature) but still wont show anything.

Do you know any logic board specialist in Germany?

Best Regards

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Regarding lithium, its the same smell like when an iPhone battery gets opened.

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