My phone said the same thing this morning, big yellow warning sign on the screen when I 1st checked the phone this today. Has indicated that it is Downloading something, maybe an update. Looks different that previous update screens.
Not sure what is happening, phone has been locked this way for at least an hour.
sounds like y'all are getting the new FP5 update, but the phone got stuck.
note, if your phone is rooted, then the update will NOT work. if your phone is not rooted, then just try to reboot your phone and check the kernel version under your phone's settings. it should now read "FP5". if not, then take it into a store and they'll fix it for you.