I think you have to contact support as they are the only one that can remove previous owner from serial number of unit. I would suggest that you'd like to update unit but can't since you don't have previous owner's user ID and password.If you weren't planning on updating just use the tool it doesn't time out from lack of updating.

          I think you have to contact support as they are the only one that can remove previous owner from serial number of unit. I would suggest that you'd like to update unit but can't since you don't have previous owner's user ID and password.If you weren't planning on updating just use the tool it doesn't time out from lack of updating.