Nokia Lumia 1520
Nokia Lumia 1520 (Credit: Nokia India/Facebook)Nokia India/Facebook

Microsoft's current Windows 10 Mobile operating system is yet to be released to several eligible devices, and some of the popular carriers have just started seeding the software to its variants. It has now emerged that AT&T has started rolling out the OS to its version of the Lumia 1520.

The report of Windows 10 Mobile update for AT&T's Lumia 1520 comes close on the heels of Verizon Wireless seeding the software to its variant of Nokia Lumia Icon. The new OS update brings several features, including universal apps and slow-mo video capture.

The AT & T's Lumia 1520 SKU has started receiving the Windows 10 Mobile update via OTA (over-the-air), according to a report by MSpowerUser (via GSMArena). 

However, owners of the Lumia 1520 need to install the Microsoft Upgrade Advisor app from Windows Store to check the availability of the new software. The OS update notification should ideally appear on the mobile phone screen when the upgrade is available.

The Lumia 1520 came with Windows Phone 8 (upgraded to Windows Phone 8.1) at the time of its release in 2013. It sports a 6-inch IPS LCD capacitive touchscreen with 1,080x1,920 pixels (367 ppi pixel density), powered by a Qualcomm Snapdragon 800 processor and comes packed with a 16/32GB (expandable up to 64GB via microSD card) and a 2GB RAM. It also features a 20MP main camera with f/2.4 aperture, 26 mm lens, Carl Zeiss optics, OIS, autofocus, dual-LED flash, 1/2.5" sensor size, 1.12 µm pixel size and PureView technology, a 1.2MP front-snapper with f/2.4 aperture, and a 3,400mAh battery.

Microsoft has already released Windows 10 Mobile update to the Lumia 1520 and several devices like the Lumia 930, Lumia 830, Lumia 735, Lumia 730, Lumia 640 XL, Lumia 640, Lumia 635 (1 GB RAM), Lumia 540, Lumia 535, Lumia 532, Lumia 435, and Lumia 430.