Recent content by jaydinho

Can you advise how I can provide more information please?

The putty log just shows the commands I am typing..

Yes it outputs msgs as normal but when I power the nvr while holding control-u I get nothing other than auto repeat.

I tried a usb serial null modem first with no luck. I'm trying to interrupt the boot process and reload a firmware via serial.

I have a bricked DS-96128 NVR I would like to know which connector on the board I need to use for serial connection. It has DB9 to 5 pin on the board and also a jst connection labelled JA1 ARM. I have tried connecting a USB TTL adapter to TX/RX and ground on the 4 pin serial but can't interupt...