Press the Menu button to open up the phone setting options. Make sure your Android smart phone is connected to the internet through Wifi or cellular data.
Go to the ‘System settings’ option.
A list of system setting options will appear. Scroll all the way down the list and you will see ‘About Phone’ tab in the last; tap it to enter the phone information options.
An option will appear stating ‘Check for Updates’. Tap this option and your smart phone will automatically start looking out for any available updates online.
If any updates are available for installation, you just have to tap on it and your Android smart phone will install the updated versions of the existing apps one by one. This is how you can easily upgrade your Android cell phone to the latest available apps in the market.