So I try to turn on my wifi and it will go Grey and load but refuse to turn on. So I have tried several things to fix it and only restarting it "helps" but like 30 seconds after I turn it on and/or connect to a network my phone turns it off and won't allow me to turn it back on. I have been a loyal Samsung customer but I'm starting to think your forced system updates are shutting down parts of my system so I'm forced to buy a new one.