Sony SGP521 User Manual page 36

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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.
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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 Homescreen, 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 (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 Update Center application to update your device wirelessly. It handles both
application updates and system updates and can also facilitate the download of new
applications developed for your device. The updates that you can download over a
cellphone network depend on your operator. It is recommended to use a Wi-Fi network
instead of a cellphone network to download new software so 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 Homescreen, tap
3 Find and tap Settings > About tablet > 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.
To Set Up Automatic Installation
1 From your Home screen, tap
2
Find and tap Settings > About tablet > Software update.
3 Tap , then tap Settings and select an option.
To Update Your Device Using a Computer
1
Using a USB cable, connect your device to the computer.
2
Make sure the screen of your device is unlocked, and the USB connection mode
on the device is set to Transfer files (MTP).
3
Open Xperia™ Companion, if it is not automatically launched.
4
Make sure the computer can access the internet.
5 Computer: If a new software update is detected, a popup window appears.
Follow the on-screen instructions to run the relevant software updates.
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 you
are using the USB cable that came with your device and it is properly connected to the device
and computer.
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http://support.sonymobile.com/
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