Window 10

Hi I am from India.. Can any one tell me than when will update available window 10 in Lumia 1520 in India..

Its available. Have you downloaded the 'upgrade advisor' app from the store?

After upgrade from upgrade advisor ..will phone run ok or not?? And also tell is it official update or not??

Originally Posted by sandeep pareek

will phone run ok or not??

I can't vouch for that, Win10m should run fine on the L1520.

Originally Posted by sandeep pareek

And also tell is it official update or not??

If you use the 'Upgrade Advisor' app then it will be the official update.