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Microsoft's Reset Protection anti-theft service now fully available for the Lumia 640 and 640 XL - MSPoweruser
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Microsoft Lumia 640 XL LTE available on Amazon now. - Nokiapoweruser
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Lumia 640 & Lumia 640 XL receive new Firmware + OS update. Changelog. - Nokiapoweruser
How to: Back up Messages/Apps/Pics/Contacts, Hard Reset, and Restore process on Windows Phone 8 (Nokia Lumia 920) – Very nice :D (+Niggles) : My Nokia Blog - 200
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