When I updated my spotify app a few days ago on my Sony Experia E my 30GB of offline files weren't deleted, but when opening the new app they were neither playable nor deletable. The files are making my phone a 100 times slower (which was worth it when I could listen to my music) and making it impossible to download new files (because my SD card is full).
How can I delete the files?
Solved! Go to Solution.
Yes, the latest app doesn't use the old cache so you can safely delete the \android\data\com.spotify.ui folder on your external SD card.