In order to make the most of your android phone or tablet, it is important that you run the latest software. Here is a step by step guide that can help you update your android operating system.
The first thing to do is to check if your Android OS is up to date. You can make your Android phone or tablet look for an update from the Settings menu on your device. However, you need to know see that only because a latest version of Android is there it doesn't mean it will be available for your device. So you need to check which version of Android you are running. It is possible that you might be running the latest version n already. Android 7 Nougat is the latest version. It will be available for more devices soon. Marshmallow is 6.x, Lollipop is 5.x, and KitKat is version 4.4.x, with 4.3, 4.2 and 4.1 coming under the title of Jelly Bean. In case your phone or tab is running any OS lower than Jelly Bean, if you don’t ever update the software it's unlikely that an update will be available.
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A good way to go about is to back up your data like pictures, contacts etc. The upgrade shouldn't affect your data but there are no assurances.
Now navigate to the Settings menu of your phone or tablet. On most Android devices you can do it through the app menu or notification bar. The Settings app will have a cog or spanner logo in most cases.
Next, scroll down the Settings menu and click on 'About Phone' or 'About Tablet'. In case you have a tabbed settings menu it will appear in the 'General' section.
The menu may differ from device to device. However, click the 'Software Update' or similar button. It will show which version of Android your device is running. You will be able to see it on this screen, and if not, you may have to choose 'Software information' to learn about that.
Now your android device will search for an available update. If you see another menu, choose the 'Software update check' button or similar. In case an update is available your device then you will be asked if you wish to install it. If you choose yes, the system will download and install the new software and reboot.
In order to search for an update, your device may need a Wi-Fi connection. It is also advised to download the software over Wi-Fi since the size of the file can be large.