Last Updated: May 16, 2014
These steps help identify and resolve the underlying cause. After completing each step, test to see if the issue is fixed. If not, continue to the next step.
Does the device you're pairing with support the same Bluetooth protocols as your Samsung M400?
Refer to the Bluetooth device's user manual for compatibility.
Your Samsung M400 is compatible with Bluetooth v1.0 with DUN, HFP, HSP, and PBAP.
If the manual doesn't list any of these protocols, your Samsung M400 is unable to connect to that Bluetooth device.
Bluetooth may be turned off on either the Samsung M400 or the other Bluetooth device. Be sure Bluetooth is enabled on both devices.
Is the Bluetooth device in range?
The Bluetooth communication range for most devices, including your Samsung M400, is about 30 feet. Be sure your devices are in range.
A soft reset deletes any temporary files that may be causing the issue.
Removing the pairing, restarting your Samsung M400, and then re-pairing the Bluetooth device refreshes and updates your connection.
Note: To optimize device performance, be sure your Samsung M400 is running the most recent device software. Check for software updates.
If you're still having issues, please contact Sprint Customer Care for more help.