Please check the model and version of your NVR before upgrading, and then select the corresponding NVR version to upgrade
US_KCT6-WCAV2.0fh_V11.1.1.35_en_TDE01.bin is the upgrade software for IPC
US_N3W-4HV2.0mc_V12.1.6.16_multi_TDE01.bin & US_N3W-8HV2.0mc_V12.1.6.16_multi_TDE01.bin is the upgrade software for NVR
530 Technology Drive Suite#100 Irvine,CA 92618