I am also getting the same problem as mention above.
As initially I setup my bolt with a device which can't work with it , so I tried to repeat the setup with another device all the process is well till at the last stage it cannot be completed by showing a dialogue of alert and shows that - This device is already owned by ,and to change the ownership you should login with your account.
I have tried many times but I failed.
Please try to help me regarding this issue.
My bolt Id is BOLT3462969.
Email - firstname.lastname@example.org