Keep your phone software and applications up to date
Learn how to update your phone software and individual applications.
About phone software and app updates
Stay in step with the beat – update your phone software and apps to get new and enhanced features for your phone. Updating the software may also improve your phone performance.
After the update, the instructions in the user guide may no longer be up to date. You may find the updated user guide at www.nokia.com/support .
Update your phone software
Use the Zune PC app to update your phone software for new features and improved performance. When you update your phone software with Zune, your personal content is not deleted from your phone.
You need:
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The Zune app
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A compatible computer
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A high-speed internet connection
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A compatible USB data cable
To download and install Zune to your PC, go to www.zune.net .
If you're using an Apple Mac, download Windows Phone 7 Connector for Mac from Mac App Store.
Before starting the update, make sure your phone has enough battery power.
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Use the USB data cable to connect your phone to your computer.
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If Zune doesn't open automatically, open it.
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Wait while Zune checks for available updates, and follow the instructions displayed on your computer.
If your receive an error message during the update, make a note of the error code, and search at support.microsoft.com to see what went wrong.
Your phone is automatically backed up during the software update. You can also sync your phone to your computer with Zune or Windows Phone 7 Connector for Mac without updating your phone software.
Select 
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and phone update > Notify me when new updates are found .