I have a HTC Explorer running Android 2.3.5. Mobile Network was working fine up until today, don't know what caused it but, I can turn the Mobile Network on and off but the H symbol or 3G just doesn't appear, and when i use a browser or something i don't have any connection. it's as if the tick thing is just a dummy. and before you ask, its not a problem with my contract or something like that, nothing has changed there. any ideas?