Typically. But if you talk to the right rep, mainly via social media, you could get lucky. I actually told the rep that I wanted to use the phone for Android development and that's why I needed an unlock, and she did it for me on my first try. In some cases, being honest may actually get you further since there have been many workarounds made for unlocking temporarily and such.I have to pay my t-mobile one plus 7T pro mc claren phone completely off before I can get it sim unlocked by t-mobile right? Thanks In advance for any information on this topic. Thanks!!!