In Feb, T-Mobile announced that they would launch variant of Lumia 520, Lumia 521. And now, we find that Lumia 521 passes through the FCC.
The Lumia 521 is a 4” IPS LCD 800*480 display phone with 1 GHz dual core processor, 512MB RAM, 8GB ROM and 5MP camera. But its pricing info is still unknown. And it will hit the market between May and June.