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Оригинальный сообщение: Chris Stables ,

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I would start looking at the board. I think there are only three connections on the FPC.

 The first one I would check is the 3V line then the two data lines. One should be an SDA line which usually goes from the FPC to a CAP then a resistor before heading to the CPU. Check the resistor hasn’t been nudged while connecting the flex.

 The last one is the other data line, that should be your SCl line for the clock signal, they usually go to a CAP than to a filter before heading to the CPU. Check the filter is not damaged or nudged. If all these check out fine the only place left is the CPU

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