which carrier company's Samsung galaxy s10 you have. Bell , roger, telus, t-mobile or at&t. Each of them using custom os with their mobile. So some have released update some do not.
Normally carrier from whom you purchase phone on discount or emi base lock mobile. Here your samsung mobile work fine with roger so it is locked with roger.Now imei you can find yourself and provide it to third party for unlocking. It may possible t...
Before moving out of canada activate roaming or internation roaming. call at customer care. or it may possible that in that country roger dont have tie up with any other mobile network provider so you want able to register mobile.
you need to make change to your network mode.use lte/ wcdma option. you can change it throught setting - network mode - lte mode. Or use this command for that *#*#4636*#*#.
there is no official announcement for lg v30 with roger. I cant say anything about this. But there are many other good mobile with roger. so dont bother about lg v30.