A smartphone that is suddenly losing sound or audio output is most likely experiencing random software glitches. But if the symptom occurs after the phone was dropped or got wet, then it’s likely due to some damaged components. But prior reports however showed that many cases of sound problems among smartphones were attributed to software
No sound and other audio problems on Samsung Galaxy A7 and other smartphones can be associated with different factors including malware infections, app glitches, faulty updates, misconfigured audio settings, and in worst cases, hardware damage. Learn what to do whenever you encounter a similar issue on your Galaxy A7 with the help of this post.