But what if you can't get a support reply? Mark moved to Plan B. This is the gold standard for button-less cameras. Mark learned that Dahua cameras have a hidden bootloader that listens for a few seconds after power-up. He used a protocol called TFTP (Trivial File Transfer Protocol) .
A flood of Linux boot text appeared. When it stopped, he typed: how to reset dahua ip camera without reset button
For three seconds, nothing happened. Then, the TFTP server window lit up: "Connection received from 192.168.1.108... Downloading update.img..." But what if you can't get a support reply