Windows 7.8 on Nokia Lumia 900 Review
The list of updates shown includes:
New homescreen experience with more room for your Live Tiles. Now resizable.
Set the Bing image of the day as the Lock Screen wallpaper.
Pocket and child Lock screen Security
20 new accent theme colours
Bluetooth Share (for DRM free media files)
Cinemagraph add-on to create blend and photo and movie-like animation, creating photos that are alive
New camera lenses to remove unwanted objects in your photos such as passers-by or people on the edge of the shot the spoil the photo.
Updated Contacts Transfer application
Updates Contact Share application
Ringtone Maker application
How to Force update to Windows Phone 7.8
Make sure you have the Wifi and your data connection turned off on your Windows Phone and connect to Zune. Go to settings and check for an update and as soon as you click the “Update” link in the settings you’ll need to disconnect from the internet (Roughly 2 secs after you click the update link).
Let Zune come back and tell you that it can’t check for an update right now, reconnect to the internet and you should see that an update is now available. Timing seems to be key and it may take you a few tries to get things just right (took me six tries). From there you follow along with the update wizard and your Windows Phone is updated.