Before now,whatsapp only works on few java fones.But i bumped into this finding from a friend that even your x2-02 with double sim can run whatsapp.
All u nid 2do s geta java fone dt can run whatsapp,copy out d prsn's whatsapp on his/her mcad,insert urz n then download a new s40 version of whatsapp.
Copy d downloaded app 2ur mcad(do not run or register the app on the phone),put the mcad bk on ur phone and run it.follow the registration process and your whatsapp is good 2go.
If you are lucky your network will update the notifier to enable you get an alert when you are sent a message else you will have to launch the app b4 u can read messages sent in your absence.
It also works with java phones that are of the category with x2-02 though its success varies(try C1 and others).

I want to run whatsapp in c1.
I downloaded from different sites but i says its invalid app.
When i update it says same.
What should i do, i m dying to run whatsapp.