If you are interest in creating an Android App or just want to test your Android mobile then Android sdk is the tool you need, you need to connect your phone to your PC so to all sort of all development, but before connecting you need to enable USB Debugging on your phone.
Debugging Mode allow you to retrieve all sorts of useful information from your phone. USB Debugging is a developer tool intended for development of Android mobile only.
To enable the USB Debugging on your android mobile, follow the step below
Step 1:To enable USB Debugging, press menu option from home screen on your Android mobile/Smartphone.
Step 2: Then tap on Settings option.
That’s it, we are done, you have successfully enabled the USB debugging mode on your Android Mobile, now you can connect your phone to PC, do all sort to development. Also enabling USB debugging allows you to connect Android evice as a USB drive so that you can read and write content from and to your Android device respectively.