no sound

[Tom Gambell]

just updated to 4.4.2 and now my s4 won't play any sound songs,videos,phone calls, etc accept when turning on. also it gets stuck on the loading screen for a very long time and flashes blue any ideas?

 

[B. Diddy]

Welcome to Android Central! It's worth trying a system cache partition wipe, which won't erase any personal data: Reset: Samsung Galaxy S 4 | T-Mobile Support