Not Showing Update 1

[ImUpendra]

I have Lumia 520 with WP 8.1 and developer preview activated. Now I am trying to update my phone to GDR1 but in phone update it is showing you are already updated means no GDR1 available to install.
#NoErrorShowing

 

[roni09riku]

What is your current version?

Also, Hashtags don't work here. Go post that on twitter or facebook.