How to set up your device as a mobile hotspot to share your data connection with Wi-Fi-capable devices.
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INSTRUCTIONS & INFO
Use your AT&T Smartphone as a mobile 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 Start screen, scroll to, then tap the Settings icon.
Scroll to, then tap internet sharing.
Tap the Sharing switch to turn internet sharing On or Off.
The Wi-Fi hotspot icon will be displayed in the Notification bar. To change the password, tap the Setup icon.
To change the password or network broadcast name, tap the Setup icon
Tap the Password field, then enter the desired password.