Hotspot not work

My BlackBerry Z10 phone Hotspot not work tell me and what can I do for it

Sometimes the feature depends on your carrier supporting it.

Your question is too vague to say much more about it.

Agree with conite. The first thing to do is make sure the feature has been activated by your carrier. That said, I just had it added to my plan, and it took some doing to get it going. After I configured hotspot with a password using the correct encryption, it still kept giving an error message that hotspot is temporarily not available and to try again later. When I googled this, I learned that restarting the phone would make hotspot start working. After I did that, hotspot started working and now always works. Additionally, using hotspot automatically turns off your wifi so that you're on the carrier's network; it won't work with wifi on.