The latest OS version 7.10.8107 for Nokia Lumia 800 was made available today in some regions. And if there isn’t any automatic updation in your device, there is a way to force update it. Though the trick is not confirmed, but some have tested it and claim it to be working.
“It’s an easy trick to force an update to your phone. Using the Zune desktop (connect your phone), go to ‘Settings’ and ‘Update’. Here Zune starts checking whether there is an update for your phone or not. After about 3 to 8 seconds, disconnect your network and wait untill your computer says ‘Update found’ (might take up to a minute or so). Then plug the network back in and start updating.
This has all to do with the way the update process works. No update found does not necessarily mean there is no update, just that you’re not allowed to get it yet. If the update has been scheduled for your device and you disconnect at the moment it finds an update (right before the Microsoft server sends the ‘block this update’-signal), you will receive a Zune notification. Once you receive the update-message, you can continue the update process same as anyone else.”
You can always give it a try. Here’s another one to update your Lumia 800 to 7.10.8107.79 version:
“On-screen keyboard. Fixes an issue to prevent the keyboard from disappearing during typing.
Email. Fixes a Google mail syncing issue.
Location. Fixes a location access issue. With this fix, the Me feature in the People Hub sends anonymous information about nearby Wi-Fi access points and cell towers to Microsoft only if you agree to allow the Check In function to access and use location information.
Security. Revokes digital certificates from DigiCert Sdn Bhd to address an encryption issue.
Email threads. Fixes an email issue related to Microsoft Exchange Server 2003. With this fix, when you reply to or forward a message, the original message is now included in your response.
Voicemail. Fixes a voicemail notification display issue that occurs on some European and Asian networks under certain conditions.”