So today, I upgraded my Nexus S from ICS to Jelly Bean which I installed from the updates my phone received but then after it had upgraded, my power control widget wouldn't work and I was not able to go into my setting app. Whenever I try to click it, it gives me the error message "Unfortunately, Settings has stopped" and closes instantly. I can't factory reset it from the setting menu so I tried to factory reset it using the "Hard" method that was holding the volume up and power > Recovery way. After I had done that, it did reset my phone to as if i just taken it out of a brand new box but I still had the Jelly Bean and both my settings and power control still didn't work. How do I fix this?