56.8% of the phones and working Andozvon update GDR3, and 41% are working to update GDR2 and 12.1% working only the first update. At the level of the most commonly used devices Oandozvon, Vhatv Lumia 521 is the most commonly used by 36.8%, and comes just behind his brother Lumia 520 by 17.1%, and 7.4 for the Lumia 920 which was released Aam 2012. At the level of the United States, network is AT & T is the largest telecommunications company employs Aleuendozvon system, followed by T-mobile and finally Family mobile.
Strange that both Greece and France Lumia 520 captures the lion's share of Aleuendozvon, with the participation of Poland, US, Ukraine and Malaysia as well.
|Nokia Lumia 521 Specification|