How to fix microphone of my Realme Narzo 50A

@balindramishra you are not telling us what the issues are with your microphone. The primary mic is on the sub_board (charging board). To repair the mic I would suggest that you replace the sub_board since it will be easier since it does not require soldering etc. and it may be more difficult to source a new replacement mic by itself. To work on your phone and since iFixit does not yet have a guide for this, use something like this video

While you work on your phone, take lots of pictures. Once you are done with it, take those pictures and create a guide for iFixit. That will help the next person that has a device with the same issues as you do. It's easy and fun to create these guides. https://ifixit.com/Guide/new The iFixit community will appreciate this.

Repair is War on Entropy!