Before you start , make sure your battery is at 45% or above, because the process might drain your battery. Sign into Mommy mode first. At the bottom right of the screen look for the update icon. Tap on it. If you need an update the download will start automatically, then tap on Install. It will go through the process and restart on its own. Don't try to turn your Nabi off when it is updating under any circumstances. If you don't need an update, it will tell you your software is up to date.