S7 Edge connects to usb drive but can't access the device

[AC Question]

I can plug in a card reader with a micro usb connector to all my other Samsung phones and it works fine to transfer files. But on my S7 Edge, it detects it, but says " High-power USB device connected. Can not access to this device. Connected device..." then I can't read the rest. It's formatted correctly and works on 2 other devices, just not thing one. Other similar devices have worked on this phone before. Any ideas?

 

[the tall guy]

Hi, did you find a resolution to the above?