How to set up your device as a mobile hotspot to share your data connection with Wi-Fi-capable devices.
INSTRUCTIONS & INFO
Use your AT&T device as a mobile Wi-Fi hotspot to share your data connection with Wi-Fi-capable devices such as: other smartphones, tablets, netbooks, MP3 players, and more. To set up a mobile hotspot, from the Start screen, swipe down from the top of the screen. Note: Eligible data plan required, learn more.
From the home screen, swipe down from the top of the screen to reveal the Action center.
Tap ALL SETTINGS.
Scroll to, then tap internet sharing.
Tap the Edit icon.
Tap the Password field.
Enter the desired password.
Tap the Save icon.
To enable or disable the Wi-Fi hotspot, tap the Sharing toggle.
The Wi-Fi hotspot is now enabled and ready for use.
When a Wi-Fi hotspot is active, the Wi-Fi hotspot icon will be displayed in the notification bar.