Never seen this before when unlocking

[lonewolf5460]

First of all in the past when you unlock the phone the splash screen of the original carrier would stay there. 
So I unlocked a AT&T galaxy S9 then put a Verizon Sim card in. It now has the Verizon splash screen and preloaded apps, like it was a Verizon phone all along. Never seen this before and I switch a lot granted not many Samsung’s.
 

[Guest]

26 minutes ago, lonewolf5460 said:

First of all in the past when you unlock the phone the splash screen of the original carrier would stay there. 
So I unlocked a AT&T galaxy S9 then put a Verizon Sim card in. It now has the Verizon splash screen and preloaded apps, like it was a Verizon phone all along. Never seen this before and I switch a lot granted not many Samsung’s.
 

Maybe the Verizon SIM wrote over the original carrier's info and loaded it's software onto it? I know my T-Mobile one did that when I switched to them from someone else.

[williamcll]

What happens if you put the AT&T card back in?

[The Sloth]

Only the U1 versions are truly unlocked, unlocking it after buying it still leaves it with carrier bloat. . 

[circeseye]

it even installed Verizon apps on it? without permission? what a load of crap.

[lonewolf5460]

20 hours ago, williamcll said:

What happens if you put the AT&T card back in?

You know I should try that I threw out the sim I’ll try mine tonight.