Hikvision organizes firmware based on regional hardware versions. It is critical to download the version that matches your specific device to avoid "bricking" the unit.
This is the primary source for the latest "K Series" NVR firmware. Hikvision Download Center
Click . The device will reboot automatically once finished. Method 2: Via USB Drive
Avoid updating over Wi-Fi, as a signal drop can corrupt the installation.
Always read the PDF release notes included with the download to see if a "bridge" firmware is required before jumping to the latest version.
Before downloading, log into your NVR via a web browser or the local monitor: Go to > System > System Settings . Check the Firmware Version and Build Date .