There is sometimes a fee for the service.

TapSettingson the Home screen.

(Some iOS versions skip this step.)

Screenshots of an iPhone with the Cellular, Personal Hotspot, and toggle switch highlighted

(In iOS 13, you must also tapAllow Others to Join).

Tap theslidernext toPersonal Hotspotto the On/green position to turn on the feature.

IfBluetoothor Wi-Fi is turned off on your iPhone, you are prompted to turn them on.

It is for use only with Personal Hotspot.

In iOS 13, you’re free to useControl Centerto turn Personal Hotspot on or off quickly.

Hard press theairplane iconto expand the options and then tapPersonal Hotspot.

It works when the two devices are near each other.

To connect to your Personal Hotspot:

The devices disconnect automatically when you are not using the connection.

Personal Hotspot can go missing from your iPhone in some circumstances.

Learn how to get it back inhow to fix iPhone personal hotspot on iPhone & iOS.

In other cases, Personal Hotspot might just stop working.

For that problem, check outHow to Fix It If iPhone Personal Hotspot is malfunctioning.