Phone: Nothing CMF 1 phone flashed with Tetris 2.9-a14-20250323478433-community-tetris.
Car: Opel Astra (Vauxhaul) 2018.
Issue: Phone connects to car bluetooth and can play music fine. Car displays “no phone”, and cannot display phone contacts and cannot play phone audio when making phone calls (on phone display during calls, car output is displayed and selectable). Basically, the car behaves as if there’s no phone connected, but is able to play music from the phone.
Strange (haven’t been able to pin it down tbh) behavior when connecting phone to car via USB. Android Auto error message on phone (even though not installed), and unable to play music via USB connection, even though car recognizes phone over USB as playback device.
Steps taken: Tried resetting car head unit. Tried resetting phone wifi/bluetooth setting. Tried all bluetooth pairing profiles (headset, car-kit etc). Tried all MAP versions and change AVRCP settings (not all combos though) through developer options.
Also: Previous android and Iphones never had issues on the car unit on either pure bluetooth, apple carplay or android auto.
Also: Using Jabra Elite 3 earbuds with the phone works without problems - both regarding calls and music.
I searched through topics here, and although there are some similar issues, none of the solutions have worked.
Some Vauxhall of that year have an advanced looking head unit, which at a guess looks rather like an Android unit. Can you get information on your actual head unit?
Thanks for taking time out for this - highly appreciated!
It’s the Navi 900 IntelliLink. From the manual, the only related stuff I could find was that the phone must support MAP and AVRCP - but no version requirement or additional info is given…
And again - a range of earlier Android and current iOS devices have worked without issues…
Thought that my garmin watch and saphe unit could be running interference with the connection, so removed both devices from bluetooth profiles, deleted cache on both apps, deleted borh apps, reset bluetooth/wifi settings phone. Reboot phone. On startup pair phone with car. No joy. Now it wont even play music from spotify.
Car head unit software should be open source by Bosch https://oss.bosch-cm.com/gm.html
I will not try to make a case regarding Google proprietary and Android Open Source Project, but these units may be able to reject connection where /e/OS does not meet the expectations of the unit.
I am not sure how the topic Android Auto fits with this, we have How to setup Android Auto with /e/OS? maybe a forum search will bring up threads were this was discussed.
No problem at all - you’ve done enough - ill see what I can find, and if nithing ill do a reset. Since no one else has reported this issue, Im leaning towards som software issue on my end.
