how do i download my music on my iphone to a new version of itunes on my desktop computer
how do i import my music from my iphone to a new version of itunes on my desktop computer
iPhone 4
All of your media should already be in iTunes on the computer.
If it is no longer appearing after updating iTunes, follow the instructions in the article from which the question was posted.
If this is a new computer, move the content from the old computer.
Sync is one way, computer to iDevice.