Maybe its something I did or something that occurred after the last OTA in December I don't know for sure, but I'm missing the option to "Charge Only" when I plug the GN3 in to a PC via USB. I know the option to "Charge Only" was there because when I first got the GN3 I was having to borrow people's USB ports all the time because I was messing with the phone too much and running down the battery. The only two options I have now are Media Device (MTP) or Camera (PTP). USB 3.0 grayed out because the connected PC's are USB 2.0. One of the two must be selected because if I deselect one option then the other is automatically selected. This is a problem because when you just want to borrow someone's USB port for a quick charge they have full access to anything on your phone's storage. Not good. Perhaps I'm missing something obvious but any suggestions for getting the option to charge only when plugged in to a PC via USB would be appreciated.