Why is my motherboard making noise when I connect the flexes?

I connect my flex for picture on lcd and then it makes noise. There was some water on the battery when i opened but i try with different battery and lcd also.

Answer this question I have this problem too

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was the battery disconnected and the board drained? Was all water removed before reassembly


Yes i changed chassi with all new except motherboard.


I found out the screen is making this problem. With original screen no sound in motherboard with aliexpress it makes sound in motherboard..


the device had water in it? what are you connecting for the device to be noisy


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