grandstream

I purchased a Grandstream NVR (GVR3552.) They claim that it's ONVIF compliant, but it works well enough with Grandstream cameras, which I already had on-hand. All is well. Then I needed to add a different kind of source to the installation. It's the output of a device that's presented as a...

Hi! Has got to me used camera, obviously inoperative. Electrical problems not found. I connect it to serial console and see this message: So, kernel image is wrong, absent or something else. I viewed listing of u-boot environments: I was trying to extract gsipca1core.bin from last...