I switched from the $30 prepaid plan to the $70 unlimited data plan, after which the mobile hotspot worked for about 24 hours, and has now disappeared completely. How can it be restored? I've tried: 1. shut down the phone and reboot 2. Remove SIM and re-install. 3. Cellular data \ "Set up Personal Hotspot" which takes me to a popup, which takes me to a url that is non-existent. What else? Thank you for your help?
