There are multiple ways to reset your device if you are experiencing issues. Power cycling your device is the first step.
In this tutorial, you will learn how to:
• Restart your device
• Perform a factory data reset
To reset the AT&T Cellbooster Pro, use a SIM tool or paperclip to press and hold the reset button located on the back of the device for 5 seconds.
If a restart does not resolve your issue, you may need to perform a Factory data reset (Master reset). This will erase all data on your device and restore it to factory settings. To Factory data reset your device, use a SIM tool or paperclip press and hold the reset button located on the back of the device for 20 seconds.