helmet attachable 4G/WIFI/GPS camera BX820 user manual
Hardware interface
employ projector software to access the internal Android system
android projector is recommended, but it's all in Chinese, and vysor is also a good choice, it has english website, https://www.vysor.io/download/
setup APN for SIM card
in android system settings--->Wireless&networks--->Cellular Networks--->Access Point Names--->add new APN
APP inside the camera
it's MPU inside, pls check details here. https://www.besovideo.com/en/detail?t=1&i=130
VMS/smarteye software
FAQ for server-E WEB software, https://www.besovideo.com/en/detail?t=1&i=166
about smarteye C/S client monitor&manager, https://www.besovideo.com/en/detail?t=1&i=87
access recording footage files in the camera
connect the camera to a WINDOWS PC via USB cable, then the camera works in MTP mode to this PC.
may visit the internal TF card and access the recording footage files in MPU/storage/video.