Why don't I have any sound on my connected bluetooth device?

[AC Question]

No sound on connected bluetooth device

Hi! I have a LG G4 with android 5.1. It used to connect to my car stereo through BT and play music and make calls but something went wrong and no it doesn't.
There are 2 optional reasons that it is happening:
1. I recently updated android. (more posible)
2. One time I connected my car stereo and a BT hands-free device and a message poped asking me if I want both devices to "listen" to the bluetooth connection...

So, how do I fix it now?
thanks

 

[anon(632115)]

Re: No sound on connected bluetooth device

Your update LG is probably using updated version of BT which is no longer compatible with the car BT. You will need to replace or update the car's BT module or roll back the LG