I am trying to upgrade my NVR device, I am getting error OSCVG20-0x00100573
Current VersionV4.75.000 build 230620
Latest Version: V4.82.100 build 240606
As the automatic update via the App doesn't seem to be working it may be best to download the new firmware and update your NVR using a PC on the same network.
The firmware can be downloaded from Hikvision's product page for your NVR here (we believe yours is a (D) model):
It is vital that you keep the firmware of your Hikvision devices up-to-date, which means installing the newest version as soon as it becomes available. The best and easiest way to do this is to use the device’s web browser interface. The below steps will show you where to find the newest firmware for your Hikvision device, and how to use the browser interface to install new firmware onto it.
Step 1: Check the current firmware version installed on the device.
Thanks for feedback, I tried from SADP, Hik-connect, web interface and isgp.hik-connect.com all tries are failed. i am going to try to connect USB with updates to the NVR and try from device again