Default is my One unlocked? BELL

So i have a htc one from bell and i have it rooted and s-off and everything. I know that doesn't mean its unlocked but it might help if i need to unlock it. So i tried using a wind and koodo sim card and the phone won't connect to any network, nothing pops up prompting me to enter a sim unlock code, the sim card image on the top of the one, has a little lock symbol on it. So i don't if that means its locked or something went wrong. I was looking at videos on how to unlock the phone and they all say that you insert a sim thats not your providers and a screen should pop up saying enter sim unlock code, but i never get that anyways, so how do i unlock it if i can't get that screen. Thanks