How to install mCamView on Symbian S60: 

1. Make your phone accepts both unsigned and signed applications. Go to menu -> settings -> Applications -> App. Manager and set “Software installation” item to “All” instead of “Signed only”. Also, turn off the “Online certificate check”. 

2.Download mCamView.sisx directly from the browser of your mobile phone  

3.Or download mCamView.sisx to the notebook or desktop computer, and then transfer mCamView.sisx to your mobile phone by using USB cable or Bluetooth or Infrared. 

4.On your mobile phone, go to the place where you saved the mCamView.sisx and click on it to start the installation. 

5.Ignore the security warning and choose continue to finish the installation.