I think if you do a full FACTORY RESET (not just a power-down reboot) then it will let you add it back to your account. But you may want to do a bit more reading on that. Many people have discussed this here on this forum.
Thanks for visiting the Community. Since this thread hasn't had activity in a while, we're going to close it to keep content fresh.
We hope you were able to get the help you need, but if you're still having trouble, please feel free to submit another post, and provide as many details as possible so that others can lend a hand. Hope this helps!