You should have an "Update System" option in the About Device section of Settings.
Back everything up first though - if anything does go wrong you won't lose your personal files. It's also best done with a full battery or powered by the mains.
You should have an "Update System" option in the About Device section of Settings.
Back everything up first though - if anything does go wrong you won't lose your personal files. It's also best done with a full battery or powered by the mains.