How can I turn on USB debugging?


To turn on the USB debugging, you can follow below steps. 1) Go to “Settings” -> “System” -> “About phone” -> “Build number”. 2) Touch the Build number no less than 7 times. 3) When you see a warning that mentioned developer mode already turned on. 4) Back to “System” again, you will find the “Developer options”. 5) Activate “Developer options”. 6) Activate “USB debugging”.