iPhone 7 no power

hello everybody i’ve iphone 7 with no power

first the iphone has problem with the tristar and i changed both of tristar and tigris now the voltages are normal and i test all the voltages of the phone everything good but still the phone not booting at all sometimes i feel some heat upside in cpu any solution ?

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Are you sure it's a no power issue and not an no display issue? Anyway, if it's a no power issue, and if you're detecting heat, it most likely means you somewhere have a short circuit on the board.

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