Owners of the Microsoft Lumia 640 XL on AT&T will be pleased to know that AT&T has released the Windows 10 Mobile update for the handset.
The update comes with a wide range of new features for the Lumia 640 XL and the update has been released as an over the air update.
Update summary Effective October 27, 2016, AT&T and Microsoft released a software update for the Microsoft Lumia 640 XL. You can download the update via Firmware Over The Air (FOTA). A Wi-Fi connection is required for the update.
In order to install the update on your Lumia 640 XL you will need to install the Windows 10 Upgrade Advisor .