Iphone 8G help plz – I plugged my phone into the computer, I signed up on itunes/installed on my computer and

then a window popped up asking if I wanted to update my Iphone & I chose yes. It continued updating for about 1hr or so and then it said something about my SIM card being invalid for the phone. My phone is the 8G from the States, I used ZiPhone to unlock it when I first bought it. Would I just have to go unlock it the same way I did to begin with? Also, I can't remember the exact website to do the ziphone jailbreak,....if you know, please give it to me. Thanks Can't do anything with my phone. its not working at all. Can't do anything with my phone. its not working at all. Can't do anything with my phone. its not working at all.