Originally Posted by
blueszz Could it be that you use the volume keys to lower the volume from other apps? These buttons affect ringer volume too.
You can disable this in the settings. That way the volume keys let you only adjust the volume from apps and doesn't affect the ringer volume anymore.
I noticed that a year or so back. My bottom speaker on my iP 4 quit. No game sounds and etc. I could not figure it out. Called Verizon and they sent me a replacement. Before it got here, I went to YouTube and noticed the volume was half way. Checked the home screen and it was all the way up. Went back to YouTube and turned it up there. Problem solved. Sent the phone back to Verizon.
Sent from my ancient but trustworthy iPhone 5