Xperia 10 soundproblem

[Aliciaswede]

When using apps like Youtube, Netflix, watching clips on Facebook etc, the sound is completely mute, NO sound at all, a few times it randomly comes on for a few seconds. Software problems? The phone is two weeks old.. Iv'e tried to restart and have updated the phone ceveral times. Anyone got any tips? 

[Marcin254567]

I have exactly the same problem!!!! 

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@Aliciaswede wrote:

When using apps like Youtube, Netflix, watching clips on Facebook etc, the sound is completely mute, NO sound at all, a few times it randomly comes on for a few seconds. Software problems? The phone is two weeks old.. Iv'e tried to restart and have updated the phone ceveral times. Anyone got any tips? 

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[pressefr]

Is your DND Do Not Disturb on?

And you've checked Media Volume vs In-Call Volume is up?