- From the Home screen, swipe up to access the apps screen.
- Navigate: Settings
> Connected devices. - Tap Connection preferences.
- Tap Bluetooth.
- Tap Bluetooth switch to turn on or off . Your Sonim XP8® is visible to nearby devices while the Bluetooth® settings screen is open and Bluetooth is enabled.
> Connected devices.
or off 
.
Your Sonim XP8® is visible to nearby devices while the Bluetooth® settings screen is open and Bluetooth is enabled.