Your Home screen is replaced by Ultra STAMINA mode Home and appears in the
status bar when
Ultra STAMINA mode
is active. You cannot exempt applications
from being optimised by Ultra STAMINA mode.
To deactivate Ultra STAMINA mode
1
Drag down the status bar to access the Notification panel.
2
Tap
Deactivate Ultra STAMINA mode
.
3
Tap
OK
.
Deactivating Ultra STAMINA mode will restart your device.
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, 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 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
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 phone
>
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 (device
memory) available, you do not receive any information about new software. The following
notification appears in the Notification panel to warn of the lack of storage space: Storage
space running out. Some system functions may not work. If you receive this notification, you
must free up internal memory (device memory) before you can get notifications about new
software being available.
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 download and install a system update
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 phone
>
Software update
.
4
If a system update is available, tap
Download
to download it to your device.
5
When the download is finished, tap
Install
and follow the on-screen instructions
to complete the installation.
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