LG B2100 no mic

[AVS32]

Phone exposed to a bit strike. After it no mic works. I' ve changed a mic and resolder elements on keypad side (resistors/varistors/caps) but still no mic signal. What I have to do to solve that prob.?:confused: I have serv manual of that model but can't rehot anything on pcb (compaund).
Thanks in advance.

[rirou]

need soltion too
but I think it's head phone socket problem