could be a problem... T-Mobile sim cards now coming pre-activated?...
http://www.prepaidphonenews.com/2016/01/t-mobile-now-shipping-sims-pre.html
http://www.prepaidphonenews.com/2016/01/t-mobile-now-shipping-sims-pre.html
We've been tracking upcoming products and ranking the best tech since 2007. Thanks for trusting our opinion: we get rewarded through affiliate links that earn us a commission and we invite you to learn more about us.