V3.4.106 Build191009https://www.hikvisioneurope.com/eu/portal/portal/Technical%20Materials/02%20%20NVR/00%20%20Product%20Firmware/07%20E-series/%5B7600NI-E1%28E2%29%207700NI-E4%5D/V3.4.106%20Build191009/NVR_K41_BL_ML_STD_V3.4.106_191009.zip