In the past, Google announced 3 new Nexus devices, along with Android 4.2 which is a brand new version of Jelly Bean. Android 4.2 is pre-loaded on the LG Nexus 4 and offers various new features, including Photo Sphere camera (capture 360-degree panoramic images) and a smarter keyboard that includes Gesture Typing and improved Google Now, quick settings and support for wireless displays and more. One thing that is not present in Android 4.2 is settings for developers. setting for developers. Really? Yes, developer options are available in Android 4.2 however Google chose to block them from Settings and to disable them by default.
The motivation behind this change is to be that Google is now focusing on people who don’t require the developer options and may easily ruin their phones if they mess with the dev settings. But, it is possible to activate the developer options on phones running Google Nexus 4 and phones that run Android 4.2 that you need to do to enable the USB Debugging feature which is a popular option.
To enable Developer Settings on Google 4.2 as well as LG Nexus 4, go to settings > About phone. Scroll down to the bottom, and then start tapping the ‘Build ‘. You must tap the number seven times to enable your developer choices. Then go back to settings and locate the developer options on the System tab. video below:
Tip Credit: Android Central