I unlocked my Iphone 4S using a Gevey ultra sim. I moved to another carrier and everything is working fine except for the personal hotspot. When I try to enable it I get a message saying "To enable Personal Hotspot on this account, contact (previous carrier) I think the phone still thinks its on the old carrier. Is there any way to get past this for example is there anything in App store that would create a wifi hotspot. The phone is not jailbroken.