As you might recall, last week, Microsoft started rolling out the Windows 10 Mobile Anniversary Update. The update was, however, only hitting unlocked devices at that time, meaning those with a carrier-locked device were out of luck. Well, that's no longer the case, as the update has now started hitting carrier-locked units as well. This means that - for example - if you have an AT&T-locked Windows Phone device, you should expect to see the update notification anytime now. Of course, it may take some time for the update to hit your device, so be patient. Alternatively, you can also...
Source: http://www.gsmarena.com/carrierlocked_devices_start_getting_windows_10_mobile_anniversary_update-news-20111.php
