I've tried uninstalling and reinstalling ultrasn0w. I'm still getting the No SIM message. I'm just sick. Everything was working just fine until that frickin' Firewall IP update and now I can't even get it back to seeing a SIM card, whether it's AT&T or TMobile. But what's so odd is that right after I first did the re-jailbrake and unlock this morning, it recognized the TMo SIM and I made a call. I was putting my case back on it when suddenly, "No SIM" and ever since, I've gotten nada.
Someone please help me.