Follow these steps:

1. Install Freja on your new phone
2. Choose ‘Existing User’
3. Choose ‘Transfer Freja to New Phone’
4. Continue to the QR code that you need to scan

Switch to your original phone

1. Open Freja
2. Open the QR code scanner in the menu at the bottom of the screen
3. Scan the QR code on your new phone
4. Approve the action to add the new device to your account

Go back to your new phone

1. Create a PIN code for the new device
2. You may reuse the one you had, or create a completely new one

You are done and can remove Freja from your old phone.

Please note that your old phone will still be linked to your account. To remove it completely, go to My Pages and then User Details.