attached is what I got from LOREX back in May 2022
LOREX_IPC-HX3XXX-Dalton_Eng_N_Stream3_V2.800.00LR000.10.R.210630.bin based on the name it seems to be from 2021 June
here Dahua Technology - Leading Video Surveillance Solution Provider with CCTV Products, IP Camera, PTZ, HDCVI products...