Hi, I have this issue, except I cannot for the life of me get it off my notification bar, it has been on there since the phone's activation.
I have disabled the "set data usage" feature in the usage settings, as suggested, but that box is still ominously staring at me constantly telling me somethings wrong.
I've done everything I could even think of. I had an old 2gb micro sd card that I even upgraded to a 32gb micro sd card just to see if for some strange reason that would make the warning message go away (plus I was running out of room).
My provider is Virgin Mobile, phone is HTC One V with Beats
Lately it's liked to just randomly skip songs as well. Maybe it's just time for a new phone....
Any suggestions?