I have to get IMEi number of Nokia N91 mobile or any mobile in Symbian S60 3rd Edition Series. How can i do it using j2me. I have tried to get it using System.getProperty("com.nokia.mid.imei"). But it returns null. I found out that for getting IMEI number one should first sign midlet. I have tried to generated self signed Certificate using OpenSSL but it still dont work, Is their any other way to get the IMEI number of phone using j2me?