Hope thats not very confusing.
I have and international version of LG G3. After receiving and update the 4g notification for some reason is not going away. Whether i turn of the mobile date off its still there. Although when i turn my wifi on the notification goes away but as soon as i turn my wifi off the 4g logo comes back. When i turn off the mobile date from notification the 4g logo remains but the data is not working. which means that its not doing anything but its annoying if the notification doesn't go away