In Samsung Galaxy Trend 2 Lite G318H microphone is soldered on the motherboard. Mic is responsible for sending your voice to the person on the other end of a phone call, recording sounds while making videos or simply using voice recording apps. So if the other person can’t listen to your voice during a phone call you are going to have to change the microphone with a new one.
In order to resolve mic problem all you have to do is to:
Simply reset the phone and verify whether the problem persists or not, you can verify that simply by using the sound recorder.
MIC normally goes mute when calling because of the filter cap over the MIC, it could either be damaged or misaligned.
If changing the filter cap doesn’t work either, than now all you have to do is to move towards the circuit board
Here some hints on fixing the Samsung SM-G318H MIC problem:
1) Visually check all the highlighted components holds for the microphone, clean using a liquid cleaner kit if an oxidation build up found.
2) Check MIC+ and MIC- connection line track or path for possible open.
3) Check replace the coils, capacitors and resistors connected in the MIC circuit.
4) Replace the microphone module. If you have further Questions please leave a comment.
Note: Please note that even though every solution posted on our website is tested by one or more members of our team before posting, but still we do not take any responsibility for any damage it may cause to your cell phones. Use these repairing solutions at your own risk. Thank You.