Verizon isn’t the only US carrier pushing out the dual Nokia Amber and GDR2 updates today, as T-Mobile has begun giving users that coveted new OS and firmware.

On the discontinued but popular Lumia 810 and the budget-conscious Lumia 521, users seeing the update when they check under Settings > Phone Update > Check for Upates.

The update is a two-step process (at least) that involves Nokia’s new firmware, which brings two-tap to wake, flip to silence and other improvements and enhancements. Likewise, Microsoft’s OS update (GDR2, build 10327/8) adds FM radio and numerous bug fixes including one for the Other storage problem. Both updates will come over-the-air via Wi-Fi and users can now force-check that the update is available via their Setting menu.

We haven’t verified ourselves if the Lumia 810 is getting the update (OS build 1326), although Nokia’s support page does list it as does T-Mobile’s support page. It also verifies our earlier report that T-Mobile was indeed testing the update for that phone.

Currently there is no word on when AT&T will being pushing out their updates, though we assume it’s not too far off.

Thanks, Tiberah and Ashraf H., for the tips