AT&T and Verizon rolling out Windows 10 to Lumia 640 & 735
The US carriers finally start rolling out the official Windows 10 update
Lumia 640 for AT&T and Lumia 735 for Verizon Wireless are finally receiving the official Windows 10 Mobile update over-the-air.
These two Lumia phones join the list of devices that run officially Windows 10 Mobile. Owners of Lumia 640 and Lumia 735 in the US need to install the Upgrade Advisor app to check if the update is available for them. The update will bring the phones to build 10586.218, but then a new update will bring them up to the latest official build – 10586.318.