How To Enable USB Debugging in Android 4.2 Jelly Bean ?

If you can't find Developer optionsor USB debugging on  Android 4.2, don't worry it is not your firmware issue. In Android 4.2 Jelly bean update Google has hided Developer options menu , by default it is not visible in the Settings menu.

HOW TO ENABLE USB DEBUGGING IN ANDROID 4.2 JELLY BEAN

1. Go to Settings-> About phone.
2. Now tap on the Build number option repeatedly about 7 times.
3. Now you will get a Toast message you are now a developer.
4. Now go back to Settings you will see the Developer options placed in the menu and you can enable USB debugging.