From Forum Nokia Wiki

ID	KIJ000344	Creation date	July 7, 2006
Platform	S60 2nd Edition, Series 80 2nd Edition	Devices
Category		Subcategory

Keywords (APIs, classes, methods, functions):

Overview

Signed MIDlets need a SIM card to be able to run.

Description

Signed MIDlets in phones based on Symbian OS need a SIM card to be able to run.

Solution

This problem exists in S60 2nd Edition and Series 80 2nd Edition. The problem is corrected in S60 3rd Edition.