Hello, after my xduoo froze and I had to reset I no longer have working prev, nex, play and pause buttons when playing music. The buttons do work when I navigate the rockbox menu. Any ideas ?

Hello, I cannot sem to play all files random. I found a couple of random and a shuffle option within the rockbox menu but it only plays within one album. I do see a shuffle icon lit on the display.Can anyone explain to me how to get it to shuffle all tracks please ?