Turn on default Samsung "Music Player" app with headphones plugged in

[ReiPaladino]

I have a Galaxy S3 and I accidentally turned off this feature that launches automatically the music/videos app when the headphones are plugged in.

I checked EVERY setup/config and app options I could find, but none of these solved the problem.

Does anybody knows how to turn it on again?

 

[SpookDroid]

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