Did you come across these questions anytime
ADB or Android Debug Bridge provides necessary protocols to connect your Android phone with your PC or Laptop. It's an interface which consists of both client and server side programs that communicate with each other. It is a toolkit included in the Android SDK Package. The ADB is typically accessed through the Command-Line Interface, although numerous graphical user interfaces do exist to control ADB.
But, before using commands through ADB, one must know
The first step would be going to your device settings and go to About Phone. Scroll down till you see Build number. Now here is something that you might want to remember as this number is very unusual, but common for all available android devices. Yes, the number is 7 You must TAP on BUILD Number 7 times continuously. This will enable one hidden option in your settings menu known as DEVELOPER OPTIONS.
Go back from About Phone and open DEVELOPER Options
NOTE
So, now you know how to turn on USB Debugging on any Android Device.
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