Do not guess. Installing the wrong firmware (e.g., DS-7232HGHI-K2 vs. HQHI) will brick your unit.
Protects your system against new, emerging cyber threats and potential vulnerabilities identified in older firmware versions. ds-7232hqhi-k2 firmware
Three possibilities:
Visit the official Hikvision Download Center or your regional Hikvision portal. Locate the firmware specific to the DS-7232HQHI-K2 . Do not guess
Go to and confirm that the firmware version reflects the new update. ds-7232hqhi-k2 firmware
Do not power off. The DVR will reboot twice. Total time: 5–10 minutes.