Hello guys! And girls of course
I found this forum when I was searching for a solution for the same indentical problem - make Android Auto wireless to work on my new Seat 2020.
Yes, you read it right, I have a Seat Ateca 2020, not a Škoda
We have a little differenet Infotaiment part/serial number, but I think that A, B, R or Z is not important. Also on Skoda.
I found a solution for me and I'm sure that it will work on your Škodas too.
Our cars have some settings that prevent Anrdoid auto wireless to work. I don't know why exactly why they set it that way.
So... to the solution that worked for me.
A changed this four settings with ODBeleven and when I re-added my phote to the Infotaiment, Android Auto wireless magically started to work like it should work already from the beginning.
Please see the attached files - before and after.
This settings are located in: Control Units ---> Module 5F (Multimedia) --> Adaptation --> function_configuration_connectivity.
I hope that this will work also on your "old version" Škodas