Mobile Cell Phone Microphone / Mic Not Working Problem and Solution – How to Solve Microphone Fault in any Mobile Cell Phone

What is Microphone or Mic in a Mobile Cell Phone?

Microphone or Mic in a mobile cell phone is an electronic component or part that helps to transmit sound during phone call. It is also called Mic. Microphone is controlled by Audio IC or Power IC (UEM).

Types of Faults or Problems with Earpiece or Speaker in any Mobile Cell Phone

• No sound or Less Sound during phone call.
• Sound with interruption or Changed sound.

Mobile Cell Phone Microphone / Mic Not Working Problem and Solution – How to Solve Microphone Fault in any Mobile Cell Phone

1. Check Microphone settings.
   
   

   Mobile Phone Microphone IC Jumper
2. If all settings are OK then, Check and clean Microphone Tips and Connector.
3. If the problem is not solved then Check Microphone by Keeping the Multimeter in Buzzer Mode. Value must be 600~1800 Ohm. If the Value is not between 600~1800 Ohm then change the Microphone. NOTE: Only one side will give value. The other side will not give any value.
4. If the problem is not solved then Check Track of Microphone Section. Do Jumper Wherever required.
5. If the problem is not solved then Heat or Change Microphone IC.
6. If the problem is not solved then Heat Reball or Change the UEM / Audio IC / Power IC.
7. If the problem is still not solved then Heat, Reball or Change CPU.

Note:

1. If there is less sound or sound is not clear during phone call then change the Microphone.