Iphone 6 Volume Up Not Working

[czaren]

As I am taking reference on the Schematic Diagram (pic attached) and trying to identify where this volume key connection,
I couldn't find the Filter/Capacitor and the diode accrding to the diagram, and after those drivers, the connection is direct from Power IC.
Any************ could guide me here pls?

TIA

[cooperlonely]

To power ic and A8. Call this line with GND, if it no calling, reball pmu..

[czaren]

Finally I fixed it.

From the pic I've attached, I replaced the Diode and the capacitor.I'm not sure which one of them fix but I replaced the both directly.

Thanks.