It usually happens that when Rooting or install any ROM to your mobile device, sure many times you stumble first doing the above you have to activate the "USB Debugging" mode. Normally to view these tutorials will teach them or explain them how to do and to activate the "USB Debugging" anyway so here in this post I show them how to do it quickly, also delve a bit on the issue and explain what it is and how it works in addition also I will explain how to activate it in different versions of Android.
What is the "USB Debugging" mode and that work?
The "USB Debugging" (USB Debugging) mode is made primarily for developers, activating the "USB Debugging" mode will have direct access to the system in order to manipulate the phone with the Android SDK (Software Development Kit). If you wanted to get their hands'll need to download and install on your computer the Android SDK but if we do not activate the "USB Debugging" on mobile, quite simply the SDK will not work, because you can not connect to the device mode. The USB Debugging mode is also useful if we use it to perform other operations such as installing a Custom ROM or Rooting.
Enable USB Debugging on Android 4.2 and higher.
We find the USB Debugging in the following path:
Settings-> About Phone-> Build number
And located Build number (on the bottom) press 7 times in a row about it, we will show a message announcing that we are already a developer.
No return to "About phone" and see that there has appeared a new option called "Options Development". We walked in and mark the "USB Debugging" option, give "OK" to the message that appears us.
As you could have noticed it is very simple and is a process that takes less than a minute at most. This option can turn on and off when you want, repeating the same process.