
Now, open iTunes on your PC/Mac and you should find your iDevice listed under the Devices tab on the sidebar. First, connect both your PC/Mac and your iPhone to the same Wi-Fi network. (make sure you use the same account on Spotify for your Mac/PC as well as for your iPhone)

This is what you should try if Spotify not syncing Local Files to iPhone: This makes Spotify think that you’re trying to upload a song that’s already up there and so, it prevents sync and offers to let you grab the cloud versions. Why does this happen? The issue crops up mostly when you’ve got fan-versions of a popular song, or remixes and other modifications that leave pretty much of the metadata intact. This usually happens when you have music tracks with metadata that’s way too similar to the ones Spotify has on its server. If local files from your Mac or PC don’t get synced with Spotify and instead, Spotify shows you ‘similar’ tracks that you can download instead, that’s going to be one big headache.

Oh, there’s the issue of your premium account not getting activated (or recognized in mobile), but that’s often just a server glitch.

Spotify is great as long as you don’t hit a bump with some sync problem.
