From Forum Nokia Wiki

ID	TSJ000267	Creation date	July 21, 2005
Platform	Series 80 2nd Edition	Devices	Nokia 9300, Nokia 9500
Category	Java	Subcategory	General

Keywords (APIs, classes, methods, functions):

Overview

When trying to install a signed MIDlet to the Nokia 9300 or the Nokia 9500 Communicator, the following error is displayed: "Application installation denied by Java server.

Solution

The trick to installing a signed MIDlet in the Nokia 9300 or the Nokia 9500 Communicator is that you need to have the device switched on. In other words, the "mobile device" side must be switched on and a SIM card must be inserted. The installation process accesses the SIM card, and this cannot be completed without the device side on.

Summary

Turn the "CMT" side on.