Hey I saw your post and I was wondering if you can get the arduino to show up on bluetooth devices when it's serial port is not connected to the PC. The arduino only appears on Bluetooth if its connected to my laptop, but if I remove it and try providing power using a 9V battery, or directly giving 3.3V at the pin, the Bluetooth functionality is lost (even though the device is technically on as the green LED is on)
Could you please help me with this issue, if there's any workaround.