Prevent my locked AT&T Samsung S7 Edge (SM-G935A) from updating to Android 8.0
I am currently on Android 7.0 with my Samsung S7 Edge and would like to prevent the update to Android 8.0.
I contacted Samsung support and they first said it was not possible. Another agent recommended that I go to developer options and turn automatic updates off.
Now my device has notified me that an update is available. It will automatically update after so many notices even though I turned off automatic updates in developer options.
How do I prevent this update from going through? I actually don't mind if this one goes through, but it will be the next one that is Android 8. Turning off WiFi does not work either I found out.