Updating Your Device - Sony Xperia Z4 User Manual

To Make Exceptions to Power Saving Features for Apps
1
From your Home screen, tap
2
Find and tap Settings > Battery.
3 and select Battery optimization. You will see a list of applications that are
Tap
not optimized.
4 To add or remove applications from this list, tap APPS and select or de-select an
application from the list to edit its optimization settings.
5
The list of applications that are not optimized will get updated according to your
settings.
You can also configure Battery optimization from Settings > Apps >
Power-Saving Modes
There are several power-saving modes available for you to use if you want to make your
battery last longer:
STAMINA
Depending on the STAMINA level, different features will be restricted or disabled in order to
mode
reduce battery consumption. These include rendering performance, animation and screen
brightness, image enhancement, background app data syncing, vibration (except for incoming
calls), streaming, and GPS (while the screen is off).
To Activate or Deactivate STAMINA Mode
1 From your Home screen, tap
2
Find and tap Settings > Battery.
3
Tap STAMINA mode and tap the slider to activate or deactivate the function.
When STAMINA mode is activated you can select additional options, for example
you can adjust the Auto-start percentage according to your preferences.
You can exempt applications from being optimized by STAMINA mode in the Battery
Optimization menu.

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,
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
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
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
From your Home screen, tap
3 Find and tap Settings > About tablet > Software update.
If no new software is available, it's possible that you may not have enough free memory on
your device. If your Xperia™ device has less than 500 MB of free internal memory available,
This is an Internet version of this publication. © Print only for private use.
.
.
appears in the status bar. You can also check for new updates
.
37
> Special access.
appears in the status bar.
® ®
Mac computer to update
http://support.sonymobile.com/