A6/C7 Red menu on a 2027/UK All Road?

[Infiniverse]

I'm trying to get into the Red Menu on my A6/C7 2017 All Road, without success.
It's running MHI2_ER_AU57X_P3634, and I believe I should be able to get into the Red Menu by pressing Back and the select button that's next to the Nav button.
When I do this, after a few seconds the screen closes and then the screen comes out again and the MMI restarts.
What's going on?

 

[RAF_S7]

I don’t believe there is a red menu on the facelift C7.5 models - at least I’ve never been able to access one on my 2016 7

 

[Infiniverse]

I managed it in the end. Just needed to leave the car on for a little longer. Back button plus front left select button.