If a direct link isn't available, look for "Firmware Download" or "Device upgrade package" in the top navigation bar. You can also leverage the (found via "Tools" in your Hik-ProConnect portal or mobile app) to detect critical vulnerabilities and download the corresponding firmware.
The Hikvision DS-2CD1021-I is a staple in entry-level IP surveillance. It offers reliable 2MP video quality at an affordable price point. However, running outdated firmware can severely limit its capabilities, expose your network to security vulnerabilities, and cause frequent stability issues. ds2cd1021i firmware download better