Troubleshooting
===============

BlackBerry OS 10.2
------------------

BlackBerry OS up to 10.2.2102 does not accept a URL with protocol ``https://`` in front of the server address.
It will always tell you, that it cannot login on your server. So instead of writing

    https://address/remote.php/carddav/principals/username
    
in the server address field, you have to write

    address/remote.php/carddav/principals/username
    