defcon3

My phone updated to Android 11 and my car no longer allows calls, music or any other audio connectivity.

Have tried:
- erased all bluetooth profiles on both phone+car
- upgraded COMAND at dealer to latest version
- reset system
- paired fresh
Car displays frozen mobile carrier band (does not fluctuate based on driving), and cannot reset/remove/call/stream

Anyone have ideas or tips how to solve this? Thank you!!!

DFWdude

Hmmm... You probably don't want to read this, but my new Samsung S20 FE updated from Android 10 to Android 11 just after I bought it last November. All the phone-to-car functions work after the update, so with my phone, the update went well and is not glitchy.

I wonder if Android 11 has several versions dependent on country? I see you are in Switzerland. Maybe our European friends will have some useful input. Good Luck.

CaliBenzDriver

You really have done most of the advanced steps (remove, add etc) The weird part is where your car shows a ghost connection as if an active paired profile still existed.

You should scan all your car modules with a obd2 scanner... Before spending too much time find the fuse for COMMAND AUDIO and give it a reset.

There are some key press combinations that will trigger a soft reset.

fatboyz

Have exactly the same problem, have even done a factory reset but still the same ! Had to roll back to EUMI 10 to get bluetooth connectivity with car again.
Reading through some online forums its a common problem with this update.