How to enable USB debugging mode on Nexus 4/Nexus 7

Starting in Android 4.2 Jelly Bean, Google has hidden the ability to enable USB debugging mode.
To see the option for USB debugging mode in Android 4.2 or higher, do the following:

• Open up your device’s “Settings”. This can be done by pressing the Menu button while on your home screen and tapping “System settings” 
• Press “About phone/About tablet”. At the “About” screen, scroll to the bottom and press on “Build number” seven times. Make sure you tap seven times. You will see a message thats says “You are now a developer!”.
• Now you have unlocked USB debugging mode. You can now enable/disable it whenever you desire by going to “Settings” -> “Developer Options” -> “Debugging” ->” USB debugging”. 

The best part is you only have to do the tap-build-number-seven-times once. After you do it once, USB debugging has been unlocked and you can enable or disable at your leisure.

Got the new nexus 4! ...finally

It lasted just 10 minutes in the Spanish play store... At the 2nd minute I got it and after almost a week has arrived. This is my first post with it, and soon some photo to evaluate it.

Stay tuned!

PhoneGap - Download and open a file (pdf, zip, image...)

In the last week I was looking for a solution to show a pdf using phonegap on android and iPhone. Searching on internet I figured out that a possible solution would be the Phonegap ChildBrowser plugin. This plugin basically open the WebView native component and show the address. After some modification (because i needed to use POST request and https protocol) of this plugin I managed to make it work on iPhone. So I did the same modification to the Android code but this time I was not so lucky. I started to find in the network and I came across the Giovesoft Blog post.