User's Manual

User Manual
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the system security.

Be sure to back up your data before upgrade.

Ensure that the battery power is more than 30% before upgrading.
When an update is available, you can upgrade the system in one of the following ways:
 Manual upgrade
 Tap , go to System > System upgrade, and tap Check for update, and then follow the on-screen
instructions to upgrade the device.
 When the System upgrade dialog box appears on the screen, tap OK to download the upgrade package.
After the download is completed, the device starts to upgrade.
 Automatic upgrade
 The device automatically downloads the upgrade package, and then starts to upgrade.
 After you receive a system upgrade notification, the device automatically downloads the upgrade package,
and then starts to upgrade.