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    Home » portal » Technical Materials » 20 HiWatch & HiLook » 00 Product Firmware » K20B2(HWN-21XX)
File/Direcory File Size Date
.. - 2024-02-21
V4.31.102 build210626 - 2021-09-21
V4.73.007 build221124 - 2023-02-10
NVR_K20B2_BL_ML_E_STD_V4.74.115_240106.zip 15.29MB 2024-01-31