SouthTech Uniview (UNV) DVR/NVR How to upgrade firmware

Home - Menu - Maintain - Upgrade - First Page Is Nvr ( Press Check For Update ) If Got
The Upgrade Button Can Press
- Ipc Upgrade For Cameras - Tick All Then Press Check For Update - If Got Update The Button
Upgrade By Cloud Button Can Press
( Tick All Cameras Then Press Upgrade By Cloud )