I have a nokia E70 but I am unable to install and JAR application. When I to install it gets to about 80% complete, stop and then gives the message "unable to install". A friend has the same phone and can install Java apps without any problems. I turned off the certification check and enabled install any app, but that does not help.
I wrote my own one form "hello world" app too, no luck there.
It's getting on my nerves now. Must be something messed on the phone.
Anyone any ideas?