Verify the Personal Hotspot switch is turned on o desactivar .
If Wi-Fi is turned off, a pop-up window alerts you that the hotspot is available only for Bluetooth and USB. Tap Turn on Wi-Fi to change setting.
To change the Wi-Fi password, edit the info then tap Done.
La contraseña debe contener al menos 8 caracteres.
Check out these Preguntas for additional support on Mobile Hotspot.