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:


I Added the account in P1.
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. 
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.
The way I solved this is by confirming all 3 checkboxes for P1, thus being able to move on to my Samsung account. I could link P2 as well.

Then I removed the Samsung account from P1, and I did not lose my contacts (perhaps since I did not set it up for syncing contacts).