The System Back, Home and Recents Button,If the physical buttons are not work.
HOW TO ENABLE SOFT KEYS ON SAMSUNG
Where can I find the Google Play Store on my Samsung Galaxy device
Soft Keys - Back Buttons - Apps on Google Play
Soft Keys 2 - Home Back Button Apk Download for Android- Latest
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Soft Keys - Back Buttons - Apps on Google Play
Soft keys - Back Buttons - Apps on Google Play
Soft Keys 2 - Home Back Button for Android - Download
Soft Keys 2 - Home Back Button for Android - Download