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You can check for available software updates for your phone and download them. Follow these instructions to update your phone's software.
Before you can update the phone software, you need to install the program Zune on your computer.
It's also recommended that you back up the phone memory. Click here for more information.
1. Connect phone and computer
2. Update phone software
Depending on your settings in Zune, the program may suggest to update your phone automatically.
Follow the instructions on the screen to update the phone software.