Personal hot spot on iPhone 4 just disappeared how can I get it back?

[iMore Question]

How can I get the personal hot spot back on my iPhone 4?

 

[Sherry_B]

Welcome to iMore!

If a hard reset does not work, you'll need to contact your cellphone service provider.

To hard reset: Press and hold both Power and Home buttons at the same time until you see the Apple logo, then let go and allow the phone to reboot. This does not delete anything on the phone.