How to Update Android Versions on My Phone
If you're the owner of an Android-powered smartphone, updates to your phone's OS happen over-the-air, also called OTA. This means you can prompt an install to occur over your cellphone provider's data network, instead of having to connect your phone to a PC. When updates are handled this way, you're free to update your phone's operating system regardless of where you are. You can learn how to update your Android smartphone by following a few steps.
Press the "Menu" button on your Android phone and tap "Settings" to open the "Settings" menu.
Scroll down to the very last option, "About phone," and tap on it.
Tap on "System updates." If an update to the Android operating system is available, the phone will automatically download and install it. If there are no updates available, the screen will say "Your system is currently up to date."