How To Fix Galaxy J5 Back Button Not Working

For those that own a Samsung Galaxy J5, it has been reported that the S7 back button is not working. These buttons on the Galaxy J5 are touch buttons that light up with each tap. These keys lit up when the Galaxy J5 is turned on, showing the smartphone is on and functioning. Thus many believe that if the lights are not turned on the Galaxy J5 back button that it doesn’t work. If you have touch keys by the Home button or the return key doesn’t turn on and not working, below we’ll explain how you can fix this problem.
For the majority of people that own a Galaxy J5, the Touch Key is not broken and is actually working. The reason that these buttons are not working, is because there just disabled and turned OFF. Samsung has a default settings that has these keys turned OFF because the Galaxy J5 is in energy saving mode. Follow these step-by-step instructions on how to turn on the Touch Key lights on the Samsung Galaxy J5.
 
How to fix Touch Key light not working:

1. Turn on the Galaxy J5
2. Open the Menu page
3. Go to Settings
4. Select on “Quick Settings”
5. Select on “Power Saving”
6. Go to “Power Saving Mode”
7. Then go to “Restrict Performance”
8. Uncheck the box next to “Turn off touch key light”