Usb on Gio@5 not working

Hello all.....

Today I noticed, that our Gio@5 doesnt react to the USB Stick. Is there something to switch on or off??  Any ideas?  

I have updated to 3.1  as I always do when a new version is available...

The other console, a Gio knows the Usb-Stick as E:    ,   means, that the Stick is ok....

Thank you for any ideas and help.

Peter

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