I have installed MIDlet signed by thawte code signing certificate in a Nokia S40 phone (Nokia 2330). The installation finishes without problem but the phone cannot recognize that the MIDlet is signed and my application cannot get unrestricted access to wireless messaging API. Thawte code signing certificate is one of the root certificates of the phone. I have meticulously followed all the procedures involved in signing. I have checked this thread http://discussion.forum.nokia.com/fo...ificate-Thawte, for common problems people have during signing and tried the solutions proposed there as well. I have gone through the checklist posted here: http://developer.sonyericsson.com/co...y/thread/42239, often recommended by experts. Can anybody suggest what else I may try?