This article describes how to activate the device.
INSTRUCTIONS & INFO
Starting December 31, 2022, the AT&T AllAccess app is going away. As a result, some features on your device may no longer be supported. You'll be able to view data usage and notifications on your myAT&T account page, and you can explore other options to stay connected with your device on the go. Learn more about mobile hotspot options.
Verify that Wi-Fi is turned off, and that the AT&T All Access widget reads "Activate"
Tap the AT&T AllAccess widget.
Tap Accept.
Choose the desired account option; new prepaid account or existing AT&T account, and follow on-screen prompts to complete the activation.