I unclaimed my photon 2 from my particle account console, so that I could transfer it to a different account. When I tried to activate it on the new account I got this message: Another account already owns this device. Ask the owner to release the device before continuing. Please help
I have a Cleverpet with a P1 and also am getting this error. Never had an account when it was working in 2016, wanting to unbrick this hunk of particle.
I figured it out. You just have to remove it from any previous products and unclaim it using the removal tool: Removal Tool