YOUR DEVICE, SIMPLIFIED. The Device Help app is a one-stop-shop to help you get the most out of your device. Keep your Android running smoothly with device health status alerts, troubleshooting, quick fixes, interactive tutorials, videos and more. With Device Help, you can: • Receive alerts and on-demand, interactive troubleshooting for battery, storage, and network problems. • See at-a-glance statuses and manage the settings for your battery, network, and apps. • View tutorials and videos on how to use your device. Device Help supports active devices on the AT&T mobile network.