I live in the Netherlands now and my folks came to visit.
While they were here, they bought an S9+ (SM-965F) for themselves on Belsimpel (on the store) and took it to Brazil.
We asked the guy if the phone was completely unlocked and he said yes, but...
When we were unboxing the phone, it said: "European SIM Only."
We then tried inserting two SIM Cards at the same time, one from Italy (TIM Italia) and another one from Brazil (VIVO Brazil).
In Brazil, we never get asked for PIN/PUK, so when it booted up, we entered the default Italian PIN (0000).
It said it was wrong, so I tried again a couple of times and it did not work at all.
I thought it was weird, but I could call him on the Italian number and that was all I cared for the moment.
Fast forward a few days, they went back to Brazil and..... VIVO does not work.
My father went to a VIVO store and they could not solve it.
He went to a Samsung store, nothing...
He even went to ANATEL (Brazilian Agency of Telecommunications) to see if the IMEI was blocked somehow, it wasn't.
Please help us to get it working with VIVO!