I have an AT&T Galaxy S3 on android 4.3. I dont know anything about roofing so I paid rootandroid.com to root my phone so I could use the ARUnchained app with my pioneer appradio. The phone was successfully rooted and the ARU app is working fine, however now my mobile hotspot isnt working. I've read where others have had a problem with the hotspot not working after the 4.3 OTA update but my phone was updated when 4.3 was first released and I never had a problem with the hotspot not working until the phone was rooted last Saturday. I'm using the mobile hotspot that was originally installed on the phone when I got it new. When I try to use the app I turn it on and get the message that the app needs to turn wifi off. I press ok then it goes thru the verifying process then I get a notification wifi tethering active then the app immediately turns off. It's acts like it's trying to work but shuts down. After this attempt to connect I then can not turn my wifi back on. I have to restsrt the the phone to get it to work. I've tried downloading various other tether apps but none of them work. Any ideas what may be wrong?