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Step 1. Log in to Central Manager, go to System > Upgrade > Branch Device Upgrade, and click Add Task to configure the settings.
If there are no available update packages on Central Manager, click Upload to upload an update package.
There are two options for branch devices to get update packages. You can select an update package in the Update Package field or select Prefer packages from update server.
Step 2. Click Next to select the branch devices you want to upgrade.
Step 3. Click Next to specify a schedule for the upgrade task.
Step 4. At the scheduled time, the Central Manager will automatically push down an upgrade task to the Network Secure device, and the Network Secure device will immediately perform the upgrade task.