Firmware | Xvr1b04hi

Avoid third-party “firmware download” sites. Many host corrupted or malicious files. Always use official sources.

: You can download the latest .bin firmware file from the Dahua Support Center and update via a flash drive inserted into the recorder's USB port. xvr1b04hi firmware

The firmware writes to the env (environment) partition during first boot and shutdown. If power is cut during this write (approximately 3-second window), the CRC in U-Boot fails, resulting in a (endless reboot). Avoid third-party “firmware download” sites