Nokia N9 - Why can’t I copy all the photos from a folder on my computer, or drag a folder to Nokia Link to copy its contents to my phone?

Check that the folder that you want to copy and any subfolders in it don’t contain a photo or photos that are 0 bytes in size. A 0-byte photo may be a broken file, for example. Remove these 0-byte photos from the folders, and try copying again.

 

Note also that if the folder you want to copy, and any subfolders in it, contains a photo that is considered album art, the album art photo is not copied to your phone.