Why are my car audio controls not working after updating 10.2.1 to 10.3.0 (and 10.3.1.1154)?

My search results came up negative so I'll add some details.
under 10.2.1, my blue-tooth car audio use to connect to my Z10 and automatically start the music player. I could use the faceplate buttons to skip, pause, rewind, etc.

I used an autoloader to update to 10.3.0 and did a restore to get all my data back. After that, the blue tooth would connect to the car but I needed to use the phone to start the music and the faceplate buttons didn't work.

I just recently updated to 10.3.1 (to get Blend, which is awesome!) I was hoping my car audio functionality would be restored but no such luck.

Hope someone can point me at a solution as a Christmas present!

Thanks in advance.

try deleting your phone and car from each list and re-pair the devices. This is should fix it. I had the same issue once before. good luck.

I have completely opposite experience... on any os before 10.3.1.#### ' BT in car will not send any commands to the phone. On10.3.1.1154, life is good again...

Check if your car / bt device in car/ is enabled for audio streaming..

Attachment 323202

Suggestion to remove device from the car and pair again, is a must do. Your phone should show details of the paired car, with all services listed on your lock screen. It should also ask: 'is this your car' to enable access to all services.


Posted via CB10

Thanks for the suggestions. I have removed the pairing from both devices and re-paired them but I'm still not getting the functionality. Any other suggestions?

BB10 4 ME

Sorry to hear... other suggestin would be change your car -)

On the serious note, what car / head unit you are trying to connect?

Posted via CB10

the head unit is an Alpine CDE-HD137BT. There is a Bluetooth firmware update available but its to correct an Apple 6+ problem.

Not sure... Your Bluetooth in head unit is:
Bluetooth Version: Bluetooth V 3.0
Output Power: +4 dBm Max. (Power class 2)
HFP: HFP (Hands-Free Profile)
HSP: HSP (Head-Set Profile)
A2DP: A2DP (Advanced Audio Distribution Profile)
AVRCP: AVRCP Ver.1.3 (Audio/Video Remote Control Profile)

Your phone Z10: Bluetooth v4.0, A2DP, LE

You said it was working on previous version of the OS, so I am confused. Best I can suggest iis below... check few things: When you pair your device, does it ask you if you want to connect to 'your' car? On lock screen of the phone, do you see your car/ head unit? Is hands free working?

One thing from your manual:
Set �HFP�, �AUDIO� or �BT PANDORA� to ON when you want to use Hands-Free phone, BT Audio or Pandora� function. Refer to �Setting the BLUETOOTH Connection (BTIN)� on page27 of your owner manual, and few pages onwards

Posted via CB10

It seems to pair up correctly. And I can stream music from the z10 , but I have to use the Z10 to start the music, skip pause,etc. Under 10.2.1 it would auto start the music player and the face plate buttons worked.

BB10 4 ME

One last thing: under settings-> main volume:

Attachment 323580

Posted via CB10

This is not going to be a solution, more a comment. It may be likely that there are aspects of the leaked OS that are incomplete or buggy. Maybe an official update may fix it? There seems to be a correlation in your case to the official/leaked os. Correlation may not mean causation but sometimes its a strong indication. It may not be something you can do anything about but its a theory nonetheless.