Hello,
I want to import a selfsigned root Certificate on my U9, when I try to import the certificate I get an error message, that the filetype is not correct. My certificate is a "DER" coded File with the filetype CER.

What can I do to import the selfsigned root certificate on my U9?

I want to use Exchange Activesync on the U9, that means that I want to synchronize the Phone with the Mailbox on my Exchangeserver.

Best Regards
Dragon78