The USB bluetooth device arrived already. It required win XP and luckily I have one ancient pc at home. Installed the drivers etc and got the USB running. And, the pixel 9a with GOS connects to it. I did not try to check any logs since the connection is ok.
Referring to my previous posts, connection with car goes in following steps with 9a with GOS:
- In car, I go to Bluetooth settings and enable Bluetooth for new connection (car sends its ID using Bluetooth)
- In phone, BMW appears in list of devices
- In phone, select BMW
- Car accepts this and asks to select PIN (I can insert any pin), been using 1111 and select OK (here phone just waiting for something)
- Pop-up window appears in phone asking for pin and two boxes to share the phonebook etc (I never select these).
- this window asking for pin is blocking other phone use
- In phone, I write 1111 and press ok
- Car gets the response and checks the connection (wating icon present on car screen). This 'cheking passcode' takes about 10 seconds and the result on car screen is always 'pairing failed'. So the last reply back to car is not understood by car.
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With all other Android phones, connection sequence:
- In car, I go to Bluetooth settings and enable Bluetooth for new connection (car sends its ID using Bluetooth)
- In phone, BMW appears in list of devices
- In phone, select BMW - the PIN window opens up immediately, also car shows right away the pin code
- I set the pin 1111 in car and press OK
- In phone I write 1111 and press ok
- Connection accepted by the car, pairing done
Note that I can set the pin code in reverse order (point 4 & 5), meaning that I can accept the pin in phone first and then in the car. Pairing is done in both ways.
I dont know what is going on since the GOS works with Bluetooth 2.1 USB module. The only difference is that the pin code dialog does not appear in pixel 9a GOS when the connection is formed. GOS just work in a different way than all other Android phones.