Get att customer service to force an Android device to restart. Also, there is a great way you can turn on the phone again if the phone gets frozen. Then, you have to hold down the power button with the volume up button until the screen turns off. Power back the device and it is done when pressing the power button for a few moments. 1-855-436-9666
United States, Computer, Get Att Customer Service to restart an android 1-855-436-9666