With Over the Air (OTA) updates, you don’t need any cables or computer, just download and install the update using your phone. Updates are free of charge, but to download the update, you need an internet connection. It is best to use a Wi-Fi connection to avoid mobile data transmission costs.
Software updates from Microsoft are safe to install, and your settings, apps, photos, and text messages remain safe and sound.
Step 1. Your phone notifies you when an update is available for you. You can also check for updates, go to Application Manager > Update.
Step 2. To view and to install the updates, just tap the status area and select New Updates, and follow the instructions shown on your phone. You can install the update immediately, or postpone the update to a more convenient time.
Step 3. The update takes around 15-30 minutes, and you are not able to use your phone during the update installation. Don’t worry if your phone restarts several times during the process, that’s completely normal.