What do the indicators mean on my Nexus 7
Depending on the features enabled on your Nexus 7, different indicators may be displayed at different times. All icons are displayed at the very top of the screen.
1. Time is displayed in the top right hand corner of the screen.
2. Status of the remaining battery is indicated by this icon.
3. The strength of a Wi-Fi connection is indicated by this icon.
4. The Bluetooth icon will be displayed and lit up when Bluetooth is switched on and connected.
5. Icons will be displayed on the top left hand side whenever there is an unnoticed notification.