HigHurtenflurst on 29 October 2015
Assuming it is similar to stock android I use... to change the text alert go into settings from the messaging app (the standard android one is a green speech bubble, if you have a different SMS app it will have it's own settings)
Individual ringtones can be set from the people app (or whatever contacts app you use)
I don't use email, but my bet is whichever app you get emails pushed to will have a setting for the notification sound.
