Reset Path for iOS cover
You can't. They say this in their documentation. They also say you can choose other images from the photographer who provided their stock cover art, but in fact you can't; you can leave the default image, change to one of your own, then change to another of your own, but that's all.


  Once you change your initial cover photo, you cannot change it back to the original default cover, but you can change it to any other photo that you take or store in your photo library.


I think this new version of Path is quite nice, but there are some rough edges, and you just bumped into one of them.