Access to Find My Phone locked in initial popup

I am transitioning from iPhone to Samsung. I mean to setup Find My Mobile in two phones, say, P1 and P2.
What I did:

1. I Added the account in P1.


2. I entered findmymobile.samsung.com, and before accessing my account it provides a popup with 3 "I agree to the terms and conditions" checkboxes, including accessing my screen unlock code (In iOS this was not needed, AFAIK). I have no problem in doing that for P2, but not for P1.


3. I mean to not proceed, for the time being, on P1, and go ahead with P2. But access to findmymobile.samsung.com is now locked in that popup, so I cannot proceed with adding/managing P2.

How can I recover the initial findmymobile.samsung.com screen?

I suspected that removing my Samsung account from P1 would freed internet access to findmymobile.samsung.com. But doing that gives a warning (in Spanish, so I am not certain that the message in English is exactly this) that "Removing the account will delete all messages, contacts and other data from the device ¿Ok to continue?".


Will I lose all that data from my phone?


That is certainly not what I want from disconnecting the phone from my Samsung account.