Call Voice not outgoing, some time listen lot of noise during call, some time voice interrupt again and again.
These all symptoms shows the problem in mic or related parts.
So i finally i share the problem solution when i changed the mic but problem not solved.
First replace the mic with new one but if problem remains then use this solution.
Just replace the highlighted component named L512 which is shown in the upper picture.
After the replace the L512 component, you are able to listen voice from mic’s problem phone.
This solution is tested by gsm team but use at your own risk. Company is not responsible for any act.
If you like my solutions then share and don’t forget to say thanks.