Owner's Manual

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12.2.2 System updates
Using FOTA Upgrade tool you can update your phone's software.
To access System Updates, please open notification panel and touch ,
then touch About phone\System updates. Or you can directly touch
System Updates on application list directly. Touch Check for updates,
and the phone will search for the latest software. If you want to update
the system, please touch the button Download, after it’s done please
touch Install to complete the upgrade. Now your phone's software will
have the latest version.
You should turn on data connection before searching for updates. Settings
for auto-check intervals and reminders about upgrades are also available
once you restart the phone.
If you have chosen auto-check, when the system discovers the new
version, the icon will appear in the status bar. Touch the notification
to access the System Updates directly.
During FOTA downloading or updating, to avoid errors in
locating the correct update packages, do not change your default
storage location.