Hello,
I just had to swap to a new phone (screen broke on the old one) and I have a OnePlus Nord N30. I was unfortunately unable to retrieve the serial & restore code from my old phone. On my new phone, I can successfully log into the Battle.Net app. When I go into the Authenticator → Settings -->Serial & Restore Codes, I am always greeted with an immediate “Hmm… Something went wrong” error message. I have tried changing the default browser on my app, clearing caches, etc. Has anyone seen this or have a remedy?