Works within 2 minutes of opening for my UN55MU6300F model. The keys are louder, but I didn't expect such quality as the original. The remote control often causes the mute icon to appear on the screen (I don't know why). I realized that I have to turn the TV off and on 2-4 times to remove it. In a section of the TV home screen, the remote control does not open a text box. All in all, if you're in a pinch and a few minor issues don't bother you, this is a worthwhile buy.
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