[nine2zz]

Hello,

i got me a FiiO M11, which does charge via USB, but
USB DAC, USB OUT and android file transfer all do not work.

I unchecked USB EXCLUSIVE in FiiO Music, and in developer settings USB is not disabled.
I also tried different cables and crosse checked everything with 2 other DAPs.

What else could it be i'm doing wrong.

thank you in advance

 

[pbui44]

Try plugging in your USB source, switching cables with ones that do data transfer, and downloading new firmware:

https://forum.fiio.com/note/showNoteContent.do?id=202105171708309850783&tid=74

 

[nine2zz]

Thank you, but the M11 is already on latest FW and i have tried now 6 different cables - they all work with my other 2 DAPs, but not the FiiO.
It only charges but all USB functions still are not working.