I've read from many different places installing ultrasn0w may increase signal (probably a myth) but I wanted to try it for myself. iPhone 4 4.3.5. 4.10.01 So I installed ultrasn0w in hopes it may boost my signal or something, but now I'm stuck on the emergency lockscreen. It won't let me bypass it. I have TMobile, but when I enter a AT&T sim and plug it into iTunes it says the phone data could not be read and I would have to restore. I'm able to access my phone with SSH WinSCP and was wondering how would I remove ultrasn0w with my PC? That may fix the problem. Thanks!!!