Updating Your Device - Sony Xperia XZ Premium User Manual

To activate Ultra STAMINA mode
1 Find and tap Settings > Battery.
2 Tap Ultra STAMINA mode and then tap Activate.
3 Tap OK to activate.
You cannot exempt applications from being restricted by Ultra STAMINA mode.
To deactivate Ultra STAMINA mode
1 Drag down the status bar to access the Notification panel.
2 Tap the notification Ultra STAMINA mode active.
3 Tap OK.
Deactivating Ultra STAMINA mode will restart your device.
Battery Care
Use Battery Care to increase the lifespan of your battery. This feature detects your
charging patterns and estimates the start and end time of your regular charging
period. The rate of charging is controlled so that your battery reaches 100% just
before you disconnect the charger.
Battery Care will not control the charging rate until it detects a regular charging cycle of at
least 4 hours over a period of several days.
To enable or disable Battery Care
1 Find and tap Settings > Battery > Battery Care.
2 Tap the slider to enable or disable Battery Care.
Learned patterns of the regular charging cycle are saved by Battery Care. Even if the
function has been disabled, it adopts to the learned patterns after enabling the function
again.

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,
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
update your device.
Before updating your device, consider the following:
• Ensure you have sufficient storage capacity before attempting to update.
• If you are using a device with multiple users, you must log in as the owner, that is,
the primary user, to update the device.
• 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.
For more information about software updates, go to
support.sonymobile.com/software/ .
To check for new software
1 If you are using a device with multiple users, make sure you are logged in as
the owner.
2 Find and tap Settings > System > Software update.
If your Xperia™ device has less than 500 MB of free internal memory available, you are not
notified about new software. Instead you receive a warning in the Notification panel:
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