Tutorial: make application reappear iOS iPod 4.2

It seems that some users after upgrading to IOS 4.2, are seeing the iPod disappears from the iPhone application. To get everything back to normal, we must perform the following steps:

1. Connect the iPhone to your computer and open iTunes.
2. The phone will appear in the left sidebar, click on the arrow on the left side of the device and we will see the music library that is stored in the terminal.



3. Play a song that is on the phone through iTunes and start listening to the speakers connected to your computer.
4. Synchronize the iPhone.
5. Open the iPod application on iPhone
6. Wait for it to update our music library.

Following these simple steps to get your iPhone back to having seen the iPod application.

Source: 9to5Mac