New here. Downloaded the 4.3 s3 update today. Figured out how to unhide Developer Options to get USB debugging option to appear. I use the tether app from tether.com and have for years. Since the update it just says "Please enable USB debugging" and won't connect. It is a non-rooted phone. I uninstalled and reinstalled the app on phone and pc...made sure drivers were up to date... rebooted both. Can't figure it out. Can anyone help me?!