I was able to unbrick my NVR today after going through so many archives with dahua firmware for the NVR5xxx-4ks2. TFTP auto update would not work for me no matter what fw image file I used. Luckily if found this amazing catalog of Dahua FW Index of /Dahua/kamerove_systemy/Firmware and in one...
Update.
I read through this article Dahua NVR Update Failed - Should I be worried about this error message? and followed its instructions. Now I am in a V4. bootloop and cannot recover. I get "Wrong Image Format for bootm command ERROR: can't get kernel image!"
If I let the system try to...
Update
So after futzing with ip settings and windows firewall on my Laptop, I am able to TFTP firmware files to my NVR using the ip address 192.168.254.254 and sending over files named ID_Serial_NO.txt. After the upload is completed, I see a bunch of ascii garbage display on the serial console...
Hello,
I have the recorder listed above that was at a really old fw revision 3.210... I was able to locate the repository of FW files for this recorder here Index of /Firmware/Rejestratory/NVR/NVR5xxx-4KS2/Stare/. I was trying to upgrade to the newer 4.0x versions but was unable to and found...