Just received the OTA Jellybean update on NS4G. Here's my technical info: Baseband version: Unknown Kernel Version: 3.0.31-g3b0c5d2 android-build@vpbs1) #1 PREEMPT Fri Jul 13 11:51:48 PDT 2012 Build Number: JRO03R My phone no longer shows a signal, and I can not send text messages or make/receive phone calls. I get the message "Mobile Network Not Available". I've rebooted twice, as noted in another thread, but to no avail. If I need to unroot, that is not a problem. Whatever I have to do. HELP, please!