For standard functional updates, you should instead use the official Hikvision Support Portal to find the latest digicap.dav file.
: Standard reset methods fail, and you need to reprogram the IC to factory defaults. Download FLASH DUMP DVR HIKVISION 7104HGH1 80237 REV5 rar
: The device does not boot or is stuck on the logo screen. For standard functional updates, you should instead use
: The internal software has been damaged beyond the reach of standard recovery tools. For standard functional updates
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).
Are you planning to use a (like a CH341A) to flash this file onto the chip? DVR Firmware Bios DUMP Free Download - AliSaler.com