Stuck in recovery after OTA.
So my phone is rooted and i got the att ota update which just came automatically. And now my phone is stuck in twrp, and when i try to flash a recovery and reboot system it doesn't work it just keeps going back to the twrp. I saw that people are using adb shell and putting in some commands but my phone isn't recognized. And also i saw some people try to do it straight in the phone by putting in the commands but i can't do that. Also now when i try to reboot recovery now it says your phone does not seem to be rooted, swipe to install superuser.....i already rooted and have superuser, so when i do swipe it just goes back to the previous screen. Any help or advice is appreciated.