I have an obi100, and I'm having the same exact problem. Tried deleting it from my account, doing the hard factory reset (I followed the instructions very closely, got the blinking lights exactly how it said I would). I have made absolutely sure I am on the most up to date firmware (when I attempt to do the manual firmware update, it tells me I already have the most up to date version).
And yet, whenever I try to add my GV account, it simply sits at "configuring" for about 5 minutes, spinning around, and then "Service Not Configured."
I am getting the pop up to prompt me for permission and everything. I am accepting, and confirming my google account. I have a working google voice number, and it is set to forward to google chat. I've used GV in the past with my Obi device, but switched over to Anveo when I thought GV wasn't going to be supported on Obi anymore.
But yeah, not even the reset button on the bottom of my device is helping me, and I've tried everything I can. It just will not configure properly. There must be something in my google account settings that's preventing it from communicating with Obi properly.
Can anyone help me?