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I have been asked to find out if its possible to modify the default screen on a mobile phone with jme. Basically the screen that the phone shows when its on but doing nothing but which usually shows the network and nearest tower info.
My understanding of JME is that this is not possible. One would have to use symbian for this or some older protocol like USSD?
thanks
It is not possible to modify the default screen of a device with J2ME. You need a native application (Symbian, Windows Mobile) to do so. J2ME lays in a sandboxed environment and has many restrictions on what you can access. An application can only be started by the user and can’t run as a service. It is also not possible to register an application to run at the start-up of the phone.
It has been discussed that MIDP 3.0 may address many of the above issues, but I don’t think it will ever be available.