Nokia’s N97 has received its latest firmware version – v21.0.045, where you can download it via the Nokia Software Updater. Before doing so, however, it is imperative you make a total backup of all your data on the phone lest Murphy’s Law strikes and something goes awry during the installation process. To update, hook up your Nokia N97 to a computer, launch Nokia Software Updater and begin to update. The firmware weighs in at 138MB, so those on slower connections would find it to be a longer than normal weight. Too bad it is still unavailable as an OTA (Over The Air) update.