From time to time, software updates for your phone may be available.
Your phone can check and then notify you if there’s a new update. You can then download and install the software update using your phone’s Wi-Fi or data connection. You can also manually check if there's an available software update for your phone.
Depending on the type of update, the update may erase all your personal data and customized settings, and also remove any applications you’ve installed. Make sure that you’ve backed up the information and files you want to keep.
Checking and downloading phone software updates may incur additional data transfer fees from your mobile operator.