I'm running 5.0.1 on my JB'd 4S and now that the 5.1.1 JB is out, I tried updating to 5.1.1. I did not "reset" the phone. The update failed OTA and while connected to itunes, the latter telling me my phone was not eligible for the update. I've backed up all my JB stuff. What should I do to update the phone to the latest 5.1.1? Thanks!