I have a Galaxy Note 4 which I love; but, lately my data turns on by itself. I always uncheck it (4G) when using Wi-Fi. I also check to see that it is really unchecked; but, then later on I see the 4G appearing. What the heck is happening?
Sorry conger1, but all I can say is, you should try a factory reset. Google instructions. This will probably fix any other issues your having with your phone. Slowness, fingerprint scanner issues, etc.