Hello everyone, as I have got stuck in my cell phone, I eagerly need help of you all. I am using beta version of Norton mobile security in my HTC desire HD which runs on Android 2.2. As it was beta version I tried to update it, when I did update and reboot the cell phone, I got the following error message: “Device is locked because SIM card is missing”. But at that time I was having SIM card installed on my cell phone. I tried to remove SIM card but it is not working for me. can anyone help me with this matter? I appreciate all of your views and ideas!