I have several issues with the 2.0 firmware on the Schuberth SC10U.
My SC1A is connected to my BMW K1600 Radio and to the BMW Navigator 6. The BMW Navigator 6 is also connected to my iPhone XS Max.
When turning on the headset and my bike the bikes radio volume is at max every time! When i press the - minus button once the volume goes to the setting it was when it turned off.
I also noticed that with the 2.0 firmware the volume steps are to big. The volume is to soft or to loud, no steps between.
A friend of mine with the same helmet only paired to his iPhone noticed the same problem but with the integrated SC1A radio.