- Check that the volume button has not been accidentally muted.
Have you checked if the volume is on mute or not? - Remove your phone case or back cover.
It is possible something may be blocking the volume rocker or buttons from functioning properly. - Clean debris from the volume buttons and other ports.
Use a q-tip or a clean cloth to remove any debris from the volume buttons and other ports. - Check if other volume options are functional.
Can you adjust your app’s volume or your media player’s volume? - Restart your phone.
You could try restarting your phone to see if it resolves the issue. - Check the settings.
It may be worth taking a look at your Settings menu to check if the audio controls are set properly. - Check the warranty status of your device.
If your phone is still under warranty, you can take it to an authorised service centre to get it fixed.