Same as me, in anticipation I have purchased off Amazon a couple of adaptors - C male to female USB 3 - to go into the cubby C port leaving the USB3 female for my standard phone charging lead. I went this way because wifey has a different type of phone micro USB to me so we have to use or different charging leads. (sorry charging/data lead)There is written "connect you telephone with a USB-C connection."
I have this connector on my mobile phone:
View attachment 7815060
which is Micro USB and thus not USB-C.
Question: Does that mean that I can not connect my mobile phone to the Grenadier?
The phone runs Android.