Windows Phone 8 1 on lumia 520 exclusive (phonemart.pk)

Microsoft once again today confirmed that the upcoming Windows Phone 8.1 update will come to all existing Windows Phone 8 devices. The most low-end Windows Phone 8 device available in the market is Nokia Lumia 520 and Windows Phone 8.1 will of course run on it without any issues. If you have any doubt about it, watch the video about showing Windows Phone 8.1 running on Nokia Lumia 520 device.
http://phonemart.pk/nokia/lumia-520