Here’s the Samsung Galaxy S3 I9300 hardware repair solution for not working MIC (microphone) problem. This solution shows the MIC tracks connection line paths., and certain components that holds for Samsung GT- S3 I9300 mobile phone microphone circuit.
Just refer to the solution below then locate the highlighted components on the PCB board and follow some procedures we provide.
Samsung I9300 Mic Jumper Ways
Samsung GT-I9300 Microphone Solution
Samsung Galaxy S3 I9300 Mic Not Working Problem Repair
Solution By d-Artigo
First step is open mobile and check Samsung Galaxy S3 I9300 Mic points on borad if there is a good value in it then change Mic with new one.Problem will be solve. if only mic points do not show value then chek all mic track and parts that are used in mic function in Samsung I9300.all mic parts and track are given in bellow diagram check all these parts and components and if necesory resold or change them.this will help you in Samsung GT-S3 I9300 Solution Jumper Problem Ways Microphone
Repair hints for Samsung Galaxy S3 I9300 cell phone microphone problem.
1. Check the microphone for possible damaged using a multimeter, replace if found damaged.
2. Trace its corresponding connection line paths.
3. Check/resolder or replace all the corresponding connected components such as the capacitors and resistors.