Updating your device
You should update the software on your device to get the latest functionality, enhancements, and bug fixes in order to ensure optimal performance. When a software update is available, 
(System update icon) appears in the status bar. You can also check for new updates manually, or schedule an update.
The easiest way to install a software update is to do it wirelessly from your device. However, some updates are not available for wireless download. You then need to use the Xperia Companion software on a PC or on an Apple Mac computer to update your device.
Before updating your device, consider the following:
- Ensure you have sufficient storage capacity.
- System and application updates can present the features on your device in another way than described in this User guide. The Android version might not be affected after an update.
To check for new software
- Find and tap Settings > System > Advanced > Software update.
Updating your device wirelessly
Use the Software update application to update your device software wirelessly. The updates you can download over a mobile network depend on your operator. It is recommended to use a Wi-Fi network instead of a mobile network to download new software so that you can avoid data traffic costs.
To install a system update
- Find and tap Settings > System > Advanced > Software update.
- If a system update is available, tap UPDATE.
- Restart the device when prompted.
To set up automatic download of system updates
- Find and tap Settings > System > Advanced > Software update.
- Tap
(More icon), then tap Settings > Auto update system. - Select the preferred option.
To enable or disable automatic updates for applications
- Find and tap Settings > System > Advanced > Software update.
- Tap (More icon), then tap Settings > Auto update apps.
- Select the preferred option.
To update your device using a computer
- Connect your device to the computer using a USB cable.
- Make sure that the screen of your device is unlocked, and drag down the status bar, and then tap Android System next to
(USB icon). - Tap Tap for more options, and then tap File Transfer.
- Open Xperia Companion, if it is not automatically launched.
- Make sure that the computer can access the internet.
- Computer: If a new software update is detected, a pop-up window appears. Follow the on-screen instructions to run the relevant software updates.
Note
If you don’t have the Xperia Companion software installed on the relevant computer, connect your device to the computer and follow the on-screen installation instructions. Make sure that you are using the USB cable that came with your device and that it is properly connected to the device and computer.