How do move music off my iPHONE onto my new computer?
Your iPhone is probably not set up right to use idump right now. It needs to be set as an external disk. To do this you need to hook it up to the computer. When I tunes comes up in the main screen where you have to opportunity to sync it, near the bottom thee is a box you can chek that says “enable disk use”. Check that box. Now idump should work.