The results were garbage. Russian forum dead links. Bitcoin miners. One promising FTP server from Bangladesh that redirected to a cat video. Then—a new entry. A .bin file, uploaded eleven minutes ago, from an IP address in the same city as the bank.
If your device won't boot, check the for a printed hardware model/version to find the matching file. H.264 vs. H.265 Compatibility : v403r11 h264 h265 dvr nvr firmware work download hot
Since this is a generic XMeye chipset (often manufactured by Hangzhou Xiongmai Technology), firmware is typically hosted by the white-label brand or through technical support portals: The results were garbage
If your device has a "DSP" version listed (e.g., V2.2.1), avoid v403r11. It is designed for ARM-based Linux kernels 3.0+. uploaded eleven minutes ago