I just put my C1 back together...
I tried webcam mode once again..and it works but you need to press shutter to activate.
Here is recap how..
No sd card. (important)
plug in Cpu cable..NOT the 2m dashcam pwr cable
C1 is off mode..no lights.
Now .
Hold Shutter button and then press and hold pwr button for at least 5 seconds.
yes, hold it even after red light come on..
once the unit is found and driver(S) installed.
it will labelled as J1455 webcam.
though it shows in devices..
.you still need to press "shutter" button again in your app..
..otherwise, Computer will report as connection problem and webcam not found
yes.. it works in Google talk and Yaw cam..