You can download the flash dump for the (Mainboard DS-80237-P REV5.2
: The internal software has been damaged beyond the reach of standard recovery tools. Download FLASH DUMP DVR HIKVISION 7104HGH1 80237 REV5 rar
The following sites host the specific .rar archive for board revision 5.2: : Provides the DS-80237-P REV5.2 Bios DUMP.rar (approx. 13.6 MB). You can download the flash dump for the