1. Opens the home screen of the phone app
2. Changes here on the "keypad"
3. Give the following code on the numeric keypad: * # 0011 #
4. There now opens the service mode on the Samsung Galaxy S5
5. Typing top right on "More" (three points), and then click "WiFi"
6. Now Playing select "WiFi Power Safe Mode"
7. If this mode of "A" to "Off"