Hi i think the problem is very important, i will tell you about it !
So it all start's when i listening music by my old sansa, but then it start show only starting up logo (sandisk) who after some minute dissolves and all the time restart's and it all happening all time like magic circle. and it's imposible to turn it off by turn off/on switch. and know one good think i found a way how turn off it i only switch on hold button and sansa show me: "key LOCKED system shutdown"
I hope that someone of you all will explain me or give me some advice how fix this problem or why it happening?