I went for a walk last night with my H3870 in my pocket playing music through the speaker but when I was almost home the music lost it's volume and was very jearky, and now it's won't go loud any more no matter what I set the volume at and when I play snails the sound and music is very jerky unless I put the volume at it's lowest setting.
Would a hard reset help?? Only problem is I don't know how to do a hard reset any help for the h30xx series?