The Bluetooth on Windows Phone does not support the required profile and this has various effects such as a custom ringtones are not forwarded from a device to the Bluetooth Headset (respectively set to default).
- My Lumia phone does not work or respond as expected
- Cellular data connection or MMS sending doesn't work on my Lumia 521 when using "Wi-Fi Calling"
- My Lumia stays at the spinning gears, how do I get it to stop?
- I cannot make a call on my Lumia phone
- I cannot share my Lumia’s internet connection with another device