I just addressed this to Posteo support.
Waiting for their feedback.
No address books when syncing with www.googleapis.com
Hi, I’m trying to sync my Google Contacts with davdroid.
I’m using the following as credentials, as noted in https://developers.google.com/google-apps/carddav/#connecting_to_googles_carddav_server:
Login: my gmail address
Passwd: my password
However, after a successful login, in the next screen davdroid shows no Address Books to be synced. So, with no address books, I can’t complete the setup.
I also tried the direct URL with no success (https://www.googleapis.com/carddav/v1/principals/my_gmail_here/lists/default).
My version is 0.6.11 from Amazon App Store.
Sorry, it’s a duplicate of #423 .
More information on #234