Ok I am trying to apply a self-created security certificate to my E62 and have run out of patience with my carrier. My question: is there any way to get around the "Unable to open. File type not supported" I have tested other certificates that have been "manufactured" and they all work flawlessly, I have also applied this very certificate to other devices within my organization with zero challenges, so I know the certificate is valid. Any help and assistance is greatly appreciated.
owa.cer
Take a look here to see how to sign apps easier. For me it worked.
http://www.gosymbian.com/SSIS_download.html