Back button not playing sound when pressed.
I have installed the stable cm10.1 4.2.2 on my i9505, fresh installation, everything is perfect, the rom is amazing too. But I am facing this problem, actually I found out that whenever I press the back button, it didn't play any sound like the menu key (click sound), and I don't know why!!?? Is this normal? Can you guys help me with that, any suggestions or ideas on how to solve it.
I would really appreciate your support.
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