NOKIA 6500s
Certificate problem

Dear Sir/Madam,

I'm getting problem about installing any new software in Nokia 6500s handset like, Opera Mini, E-buddy etc.

My phone shows an error "Certificate not in phone or Sim". So please solve my problem or tell the solution about this error.

Actually, yesterday I installed new software in mobile because it was restarting automatically. Today its working good but just showing single error which I have told you. (I'm waiting your reply):)

Yours Customer.

Thank You