Learn how to wipe the Sony Xperia Z using the hardware keys. If the Sony Xperia Z is not working correctly, you may need to master reset it and also clear the cache partition. These two resets clear different parts of the Sony Xperia Z storage. Unlike a master reset, wiping the cache partition does not delete your personal data.
- While the device is on, press and hold the Power and Volume Up keys.
- Wait for the screen to shut off and the device to vibrate once (about 3 seconds).
- Release the keys once the screen has shut off.
- Press the power key to turn the device back on.