Find "System"
Press the menu icon.
Press Update Centre.
Press the System tab.
Update phone software
If a new software version is available, it's displayed.
Follow the instructions on the display to update your phone's software.
Follow the instructions on the display to update your phone's software.
![Sony Xperia Z Sony Xperia Z](http://wmstatic.global.ssl.fastly.net/ml/7200918-2947796.png?width=480&height=480)
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