To download the firmware or EEPROM dump, you can find the specific .rar file and related technical information through the following resources: Firmware & EEPROM Downloads Elektrotanya : You can download the DVR-AHB700XT8-3520D V4.03B Dump EEPROM
: Ensure the download matches the Hi3520D SoC, as firmware is often specific to the processor and channel count (4, 8, or 16-channel).
: If the device still boots, navigate to [System info] > [Version] to find your current firmware string.
