https://www.epo.org/en/node/what-happens

What happens if the device I use to receive codes for two-factor authentication gets lost, damaged or stolen, or is replaced by a new one? How do I set up new authentication methods?

If you lose the device you use to receive codes for two-factor authentication, contact support@epo.org. They can deactivate the two-factor authentication methods set up on the lost device. After that, you can set up one or more new methods in your Account settings

It's best practice to set up several authentication methods, just in case one is on a device that gets lost. And if you replace your device, make sure you set up new methods on your new device.