Find "Software update"
Press Apps.
Press Settings.
Press About tablet.
Press Software update.
Update tablet software
If a new software version is available, it's displayed.
Follow the instructions on the display to update your tablet's software.
Follow the instructions on the display to update your tablet's software.
![Sony Xperia Tablet Z Sony Xperia Tablet Z](http://wmstatic.global.ssl.fastly.net/ml/7290921-3370038.png?width=480&height=480)