No Sim Card Installed
I've experienced the No Sim Card Installed when the phone is on the desk sitting idle, when holding it in my hand dialing a number (in mid dial, before attempting to dial), when on an active call, when reviewing contacts.., a bit of everything. I have figured out a simple Airplane Mode ON then OFF resets it... I need not reboot/power cycle -- which just makes it quicker to recover, but no less frustrating. This has happened to me about 20 times in the last 24 hours. Went to AT&T store to get a new sim, but it was insane, so will try going back later. I can't imagine it's the sim card itself. I am hoping it's just a software glitch that can be fixed easily. (but i doubt that would actually come quickly!)