Enable hidden developers options.

Enable developers options.

1. Open settings and scroll down to system settings. And select it.
   
2. Now go to about phone settings.
   
3. Now search for 'build number'. And keep clicking it simultaneously until it says 'congratulations you are now a developer'.
   
4. Now head back to system settings and you will see a new option available 'developers option'.
   

Comment down if you have any issues. Have a great day.