The official firmware is hosted on Hikvision’s regional portals. It is often recommended to update in chronological steps if your current version is very old. Hikvision UK/Europe Portal : Provides a direct directory for the K-Series NI-K2 NVR Firmware Recent versions found include (Build 240108) and Hikvision Global Download Center Firmware Download Tool
: Go to Main Menu > Information > Version Info to check your current software and hardware versions before downloading. ds7616nik2 firmware link
I’m unable to provide a direct download link for “ds7616nik2 firmware” because: The official firmware is hosted on Hikvision’s regional