HOWEVER: NEVER FLASH THE BOOTLOADER, THERE IS NEVER A REASON TO!!! (unless it's gone, but then this tutorial won't help you ^^) cfgRestore might be useful if you want to reset your camera.Check the thread linked at the start for a description of all commands.In this case you can run above by putting run dr into the commands.txt.Your camera should have some predefined ones in printenv, like:.Write appropriate commands.txt to flash the img files onto the camera.Confirm it is actually compatible using the HWID.If you looked at the thread I linked at the start of this post you should know what to do now: You should not flash incompatible firmware.All firmware images have a check.img or hwid file with compatible HWIDs.printenv and look for the HWID=IPC-HDW4431C:BLA:BLA.Could help you if you want to run a command and check the output.Listens on 192.168.254.254 port 5002 UDP to receive the log from the camera after successfully downloading and running the given commands.Starts TFTP server which serves the root directory on 192.168.254.254 (port 69 UDP).Reads commands.txt and generates upgrade_info_7db780a713a4.txt in root directory.If you have a router on 192.168.1.1, add a static route to it which redirects all packets which are meant for 192.168.254.254 to your computer (mine is 192.168.1.4): There are two options to make the camera be able to reach your computer. (It sends packets addressed to 192.168.254.254 to 192.168.1.1 because it's outside of the subnet) Step 1, Configuring the network correctly. The camera tries to download a file called "upgrade_info_7db780a713a4.txt" from a TFTP server running on 192.168.254.254 and executes the commands in said file in the bootloader (U-Boot) shell.įor more in-depth information, read this post: Dahua Firmware Mod Kit + Modded Dahua Firmware If your camera still has a working bootloader (assume it does) then you can flash it easily, because:
I recommend you to read through the above thread first. A successor of Dahua IPC unbricking / recovery over serial UART and TFTP
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