We must be careful of when retrieving messages/data from mobile devices in public because of Bluebugging. It is a form of attack through the use of Bluetooth. It is more than just Bluesnarling and Bluejacking. It goes beyond, allowing the thieves to take control of a device.
The issue would be that the memory was not installed or was not detected by the system. If this happens, the system boot will fail and a beep code is heard. The system would not show anything since all of the software are in the memory which was not installed or detected.