* Use the synchronisation software on your computer to install the latest updates for your Sony Xperia 5.
* Connect your Sony Xperia 5 to a computer with a USB cable and continue with the following steps.
* *Note:* It is not possible to revert to an older version of your device's software once you have completed an update.
* Go to the Start screen.
* Drag the bar up to the edge of the screen.
* Scroll down.
* Choose *System*.
* Choose *Software update*.
* If this screen appears, an update is available. To install the software update, follow the on-screen instructions.
* If this screen does not appear, the Sony Xperia 5 already has the latest software version.
* Return to the Start screen.
* The Sony Xperia 5 now has the latest software update.