For those that can't get the thing working. See here:
http://forum.kodi.tv/showthread.php?tid=...pid2289336
You have copy the cache file that gets installed on the PC device, note PC in Windows as that lets you get at the file in explorer. Copy it off and paste it to the Libreelec file system, into the right folder. Fire up the spotify addon which will run for 30 secs before coming up in Spotify.
Note the 32-bit system build for KSZAK builds, that's the point here, the x64 won't won't work with the Spotify addon as there are no libs from Spotify yet. Thats why KSZAK sticks with the 32-bit for compatibility.
From original thread:
There is a small workaround to try if you have another client which actually does have a browser:
1. install the spotify client on a pc with a browser
2. open the spotify client and accept the authentication request in the browser.
3. now, on the filesystem navigate to kodi userdata\addon_data\plugin.audio.spotify and copy the cache file to the same location on your pi
In step 3 there should be a file with your spotify username in its file name. Thats the file you copy. I think that step 1) means install Kodi and then add the spotify client to it from the Embry repo. Even test it out on the PC which will work. In that way you can be sure you've a working structure and system in Kodi. You can then take the .cache file, copy it to your Kodi box and fire up Spotify.
Its put in here,change the name of course to your box: \\libreelecs905x\Userdata\addon_data\plugin.audio.spotify Your see the file user_name.CACHE so go ahead copy it and place it back into the same folder structure on your Kodi box. In my case the S905X using KSZAK builds for S905/x devices. This is just an example of the folder structures used. On Windows the source will be probably found in apps data under the user, the Kodi install structure will be the same though regardless.
