i have a model SN-6408CW Sinocam by Szsinocam. 
it is a basic outdoor barrel type camera with two leads eminating from the base.  One for the power and the other for comms. 
  
Long story short, at many hours, i could get the camera to work( i think) locally and over the the dvripc. net server.  i should have quit then. 
  
when i tried to tie in my iphone, thats when i got into trouble.  Th Smart HD user agent recommended by Sinocam would not connect.  Kept timing out.  So i researched the settings.   I believe  while trying to change some output ports settings in the UPNP device settings (one was reporting not working), i immediately lost communications.  i cant get it back.  When i connect directly to the camera (no router) the network status shows packets going in, nothing leaving.   i believe i set the port to 8400 or 8200.   
  
Anyway, i would like to go back to factory settings, through  a hardware reset line since i cannot access the device.  The only Sinocam literature i found on the subject was : 
  
Basic functions 
One-key reset, password protection, watermark technology 
  
  
Don't know what one-key reset means.  So if anyone can help with my resetting the device either through a reset line or the One-Key, i would be much obliged 
  
thank you 
Rick