The Device's Screen Keeps Shutting Off or Going Black
1. On your device, select the Android home icon.
2. Select the Apps icon.
3. Select the Settings icon.
4. In the left panel, select Display.
5. In the right panel, select Sleep. The Sleep dialog will open.
6. Select a time (after 2 minutes of inactivity) you want the T10 to wait before it sleeps.