Volume is much lower after upgrading my 4s to IOS 5.1???
I have upgraded my iphone 4s from 5.0.1 to 5.1. I can significantly notice that the ringtone volume is much lower than before with IOS 5.0.1 installed. Of course I set the same volume level at the same place before and after I upgraded to IOS 5.1.
iPhone 4S, iOS 5.0.1