u/Jaded_Grocery_7531

I got the Echo mini and iv been seeing all these cool themes online but many are only compatible with V3.2. The current Firmware is V3.4 so is there a way I can go back go use these themes?

Iv been watching a lot of videos online but I was wondering if just downloading audio from youtube and converting to mp3 would work and how to add it to the Mini echo. I listen to all of my music on either soundcloud or Apple music so any help with those two options would also be great!