syncing to itunes library
I have two itunes libraries. A pc at home and 1 at a friends.
Why cant i sync 1 iphone on both computers?
The short answer is because that is the way Apple has implemented the syncing algorithm. You can only sync from one computer at a time and those libraries cannot be merged. This ids a user-to-user forum. No one here (with VERY limited exceptions) works for Apple. We cannot answer WHY questions. If you still need help, contact Apple Support.
The only workaround I can think of is to copy the library on your friend's computer to a flash drive (for example) and then import it to your computer.