the black update is the gdr3 update plus nokias firmware. Black includes gdr3.Today is rolling out the black update
Where is the GDR3 UPDATE
Lumia 520
150 approx. for black firmware. you need a good wifi connection to download it , not possible to download on 2g/3g; 2gb free space on phone, if you don't have Microsoft gdr3 update then it will be downloaded with this update making the size 200+mbAny one download it ,
Hom much size of these update...?
2gb of free space is important or not.