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Repair information and guides for the fifth generation of iPhone. Model: A1387

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iPhone does not turn on

I have got a logicboard I try to repair but I can't detect what's wrong. I'm using a complete fonctionnal iphone for testing.

When I push power button nothing happens, screen is off.

With power+home the screen is still off but the logicboard begins to heat up around processor/flash memory zone. Does it means processor is the problem?

Thanks for help

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if its heating up then it could possibly have a short near the power ic. test for one with

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Ok I will test, but the heating is a happening in dfu mode, something special with this mode?

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pingponggwen will be eternally grateful.
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