Ps vita speaker crackling

Hi guys
I buy this vita that have a thing with the speakers.

I guess it’s something on the motherboard because i tried everything, it is not the hack, i removed it, put it back, i changed the ribbon cables, the speakers for those of other ps vita and there is no way to fix it.

What I have noticed is that the motherboard does not have a resistor, my other ps vita has both resistors but this one only has the bottom one, could it be that?

it does not allow me to put links or images