Thanks! Cabled pc to router help :) . Now tftp updater works and I put this firmware on camera https://www.dropbox.com/s/3hy72q4osstun72/5.30%20Downgrader.rar?dl=0
And all is China, thats new problem. I try other firmwares, but that downgrader is only what works. I also try change language to 1...