Windows Phone Upgrade Lumia 900

Now, one of our eagle-eyed readers caught the Lumia 900 getting in on the action. The OS update is for RM-823, which is the international, non-AT&T version and has an OS version number of 8858 with the 12480 firmware. Windows Phone 7.8 is finalized at 8858 making this a bonafide official update.(1)

AT&T’s Lumia 900 gets a second life through Windows 7.8 …

Plans to update the Nokia Lumia 900 with Windows Phone 7.8 have been slow-going, to say the least.(2)

4G LTE (limited service areas) or HSPA+ connectivity · Windows Phone 7.5 OS · 1.4 GHz Qualcomm single-core processor · 4.3-inch ClearBlack AMOLED display · 16 GB (3)

Nokia Lumia 900 AT&T GSM Unlocked 4G LTE Windows …

Lumia 900. Wireless Carrier. T-Mobile, Unlocked, Straight Talk. Operating System. Microsoft Windows Phone 7.5 Mango. Cellular Technology. 4G, 3G, 2G.(4)

1. Plug in Lumia 900 to the PC via the USB cable. 2. You should see Zune software automatically start. – If you do not see the Zune software or Windows Phone 7 (5)

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