Could not use Bluetooth on Nexus 4 OTA 13 with Ford Sync System

[Jochen M. L.]

Hi,

im using a LG (Google) Nexus 4 with OTA 13 (15.04 - image 20160913) stable channel and having big problems on using this with my car Bluetooth.

It's a Ford Sync (incl. App link, car built date end of 2014 - model C-max Austrian market (german)).

Pairing worked well, adress book download, battery status, network strength display is ok and after the initial pairing process you can use it normal, but the next time you drive your car you won't hear anything.

So the phone is not really switching to the Bluetooth audio (it looks like on the pohne, but neither speakers nor mic is working). You or the other side won't hear a word.

You have to delete the phone from the Sync system, pair it again.

For someone driving alot this is a real killer bug.

The strange thing is, that the rest, making or recieving a call works, only audio is missing.
As i can see in the bug-tracking system, this is not really new ( https://bugs.launchpad.net/canonical-devices-system-image/+bug/1590844 ), but with BQ or Meizu, so i have to say it's also a problem on the Nexus 4.

Can I fix this on a short way, or is there some dev. to do ?
Thanx.