Facebook for Windows Phone 8 gets major redesign and new features in beta app - The Verge
Microsoft Lumia 640 XL: Release Date, Price, Specs, and More | Digital Trends
Install apps - Microsoft Lumia 640 XL LTE - Windows Phone 8.1 - Device Guides
Microsoft Lumia 640 LTE pictures, official photos
Install apps - Microsoft Lumia 640 XL LTE - Windows 10 - Device Guides
The Microsoft Lumia 640 Review
Install apps - Microsoft Lumia 640 XL LTE - Windows 10 - Device Guides
SKY ELECTRONICS - Microsoft Lumia 640 - K 120,000 1 Year Warranty vat exclusive Microsoft Lumia 640 is an Windows Phone 8.1 Smartphone from Microsoft. It comes with 1.2 GHz Quad Core
Facebook for Windows Phone 8 gets major redesign and new features in beta app - The Verge
How To - Add your Facebook account to your Windows Phone - YouTube
Microsoft Lumia 640 review: Big screen and great camera make a brilliant budget phone - CNET
Microsoft Lumia 950 review: Not a flagship, but a first step | Engadget
Microsoft launches Lumia 640 and Lumia 640 XL at MWC (updated)