[BK_NY_RAY]

To use in the U S of A, GSM in Tmobile and AT&T.

Thanks in advance.

[Bla1ze]

STL100-3 is what want to get. if you can get the RFK121LW sub-variant, that would be a bonus since that is the exact T-Mobile version.

[BK_NY_RAY]

Thanks for the reply . Will either STL1003 work perfectly, 4G, updates, leaks, apps, etc. on Tmobile or AT&T?

[guygardner73]

Thanks for the reply . Will either STL1003 work perfectly, 4G, updates, leaks, apps, etc. on Tmobile or AT&T?

Yes, you won't have any problems with stl100-3

Posted via CB10

[EYE2]

Just wanted to let everyone know that the unlocked White Z10 I received direct from BlackBerry (shopblackberry.com) is the
STL100-3 model | RFK121LW sub-variant which works perfectly on 4G LTE here in the United States on both T-Mobile and at&t; I am in the Philadelphia area if that matters to anyone.

Interestingly, Wi-Fi Calling worked right out of the box, even though the T-Mobile Wi-Fi Calling app was not installed. However, without the app installed, you are unable to choose between Wi-Fi Preferred, Wi-Fi Only, or Cellular Preferred.