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. Note: Eligible data plan required, learn more.
From the home screen, swipe down the Notifications bar.
Tap the Settings icon.
Under the connections tab, tap More networks.
Tap Tethering and Wi-Fi hotspot.
Tap the Mobile Hotspot switch to turn it on.
To view or change the Wi-Fi hotspot,security type, or password, tap Mobile Hotspot.