Improper connection

Reconnect the microphone

Disconnect the microphone and reconnect it to the Audio in (Microphone) port of the device.

Temporary system issue

Reboot the device

Press and hold the power button at the rear lower right side of the device until the power menu is shown, and tap Restart to reboot the terminal.

Interference by attachments

Remove attachments around the microphone

If some attachments are attached around the microphone, the microphone cannot collect the sound properly.

Detach the attachments and check again.

Microphone issue

Replace the microphone

Replace the microphone with another one.

If the replaced microphone works properly, the previous one may have a problem.

Repair or analysis required

Contact local reseller

If you cannot solve the problem with above steps, contact your local reseller to proceed repair or analyze the issue.