Update
I purchased some 1.7 (version 52) licenses to see what would happen.
I installed the 1.7 (version 52) client onto a new Android device. Set it up in the CMS and it does not work.
I unlicensed a current client, upgraded it to version 1.7 (version 52) and it works.
So still I am unable to get any new Android clients to work.