The Lumia Amber update begins rolling out in August – you’ll get a notification on your phone when it’s ready to go. The update will be available for Nokia Lumia 920, 820, 720, 620, 520, 928, 822, 521 and 810.
.... source ... : http://www.nokia.com/global/windows-phone-amber-update/
Windows OS 8 code Amber will more give features and fix bugs like Nokia Lumia always totaly death when user use it even batteray still have power ...
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