I updated my wife's phone with ##update# that is how I got the new PRL. I did the same to my daughter 4s and it also became 60797. I guess this is the new PRL for the 4S? I was having Multiple issues with the old PRL. My tower was just upgraded to NV and I was having Dropped calls, slow texts and weak data when i had always had very good service. As soon as i did the update everything went back to normal except for data speeds which more than doubled. Happy camper here.