I am going to upgrade my device. Is there any procedure I need to follow?
Please check your account information (phone number, email address, and 2-Factor Authentication settings) before switching to a new device. If your registered information is not up-to-date, you may not be able to log in to your account after switching to a new device. Also, please transfer your 2-Factor Authentication to the new device while the old device is still usable.
For details on how to transfer 2-Factor Authentication, please refer to the following link.