Microphone not working during call on speaker mode

[Devji12]

During voice call and video call microphone not working on speaker mode.

Microphone working on voice recording .

Phone app clear cache and clear data but not working microphone. 

How to solve this problem????

[cs-member11]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. We request you to kindly visit the service center for a physical inspection of your device. You can locate your nearest service center with this given link: https://www.samsung.com/in/support/service-center/

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support