so i have had the 9900 for over a month ive had the mobile hot spot working just fine. i got a new lap top lastnight.....and i dont know if this has anything to do with it it but i since i backed up my phone to the new laptop the mobile hotspot hasnt been working. i get this message when i try to turn on hgotspot thru my 9900.........to use this feature contact your wireless service provider and subscribe to a mobile hotspot data plan. i have att. i havent had a problem for over month so im sure its something with how i backed up my phone or a setting. please help me.