In this tutorial, we learn how to update the firmware on the Nokia N900. To start, go to your app manager on your phone and make sure the battery is fully charged. Next, click on the "updates" button and wait for your phone to load and search for updates. When it's finished, the updates for the phone will appear. Click on them to download and install them to your phone. You will have the option to backup your data, you can do this if you choose, but you don't have to. When finished, your phone will be updated, so check for these around once a week.