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Hello everyone There is a Dahua NVR4216-4K recorder built in 2015. I can't reset my password on it. I have a little experience resetting Hikvision recorders using usb-ttl. The Board has a button similar to the password reset button, but nothing happens when you reset it according to the...

Hello dears! Please do not scold strictly! I have a difficult situation, the client asked to flash the NVR for China to Russian firmware to change the language. After flashing, the NVR does not turn on and there is no image on the screen. I connected via USB-ttl Putty and here's what it gave me...