unable to activate the USB mode

Hi there, 

i’ve got un issue with the WMD, i try  to re-activate the usb mode on the Sandisk app to use it with my computer but nothing change, even if i want to remove the sending of anonymous data, the switch stay “on” but nothing change , if i disconnect the phone and reconnect i can’t see any change on it .

is there any other way to change this setting?

you can try resetting the WMD