Here is what I did in order to restore sound volume in Nike+ app:
1) go to the menu->settings->Auto voice feedback
2)pressed “preview voice over” and quickly, during preview sound, pressed volume+ button of the iPhone.
Here is what I did in order to restore sound volume in Nike+ app:
1) go to the menu->settings->Auto voice feedback
2)pressed “preview voice over” and quickly, during preview sound, pressed volume+ button of the iPhone.