The update is sent out in waves as not to overload the Samsung Servers @JuandiGuti
It's then sent out to eligible phone's in chosen regions.
Some networks do ask Samsung to hold back the update until they've tested it to ensure it does not clash with their network features and apps, however not all networks do this.
I also assume Network's have early access to the software so they can try and be ready to update their apps etc to be inline with the launch date's as not to hinder their own customers.
If I can be of any further help then please don't hesitate. Take care. 😎
Daily Driver > Samsung Galaxy s²⁵ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
