I received my C2 (second batch) a few days ago. It came with 5.0.0.55 installed.
I installed Appsupport and enabled spoofing, installed microG by following these updated instructions exactly.
Yet I did get the “check the documentation” message and the boxes unchecked.
I tried the clean removal and reinstallation of Appsupport - didn’t help.
Then I used the “brutal way” and now all the boxes are checked!
Trying the same thing twice and expecting different results is the definition of being an engineer!