How to access Developer Mode

1 after successfully installing the application, you will be welcomed by the " home screen" of purple tools 2 click on "developer mode", as seen in the below image (marked in red) 3 click on "developer mode" to switch it on/off , as seen in the image below (marked in red) 4 click on "adb debugging" to switch it on/off , as seen in the image below (marked in red) 5 click on "app from unknown sources" to switch it on/off , as seen in the image below (marked in red)