I was wondering if anyone else is experiencing the same thing as me. I did an OTA PRL upgrade the other day to 10029 (I am on Sprint). Since then every once in a while I get some strange behavior. My phone will continue to show a full strength signal but I can neither dial out nor receive calls (the callers hear it ring 5 times and then VM-- it does not drop them straight into VM). In addition, I have no data service during this time.

Sometimes putting it in flight mode and taking it back out fixes the issue. Sometimes it just resolves itself.

During the time it is in limbo my phone gets hot and the battery starts draining at about 1% / minute.

Anyone else seen anything like this?