My device is offline .Hik vision model ds-7604ni-k1/4p

[aman73]

i followed the video instruction and under device managment when I add a device it says the serial number is wrong ,, although I entered the serial number at the back of receiver starting from c1..... 9 digits. My device is offline so I can not access it from Hik connect appp in my mobile. please help solve thisissue

 

[Phil]

I'm not entirely sure where you are adding your device, but usually when you are asked to enter the serial number it is the 9-digit number (numbers only / no letters) from the label on the device (or the label on the packaging) - not part of the full serial number that you can see displayed in SADP.