Sorry there isn’t much help for you. Perhaps you can ask Jolla zendesk for a ticket? The C2 wasn’t anounced as a dev device. The video on Youtube says that ‘no other device will be needed’. After the release the C2 happened to be half baked and many experienced problems. Some more than others. So it’s now considered as a device for tinkerers, unfortunately.
When I saw this post I’m replying to I did a real double take?! I just had a cat-in-lap cause my first Sailfish experience to go south in a hurry 
and I was thinking you’d maybe read my post?! No, but love your username! 
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