Buttons do not work. Disk error.. Damaged?

Hi David,

If you experienced this issue with the drives which worked before in this case it seems that’s an hardware issue with the device.
Are does standard USB sticks? Have you tried with USB HDD?
Please contact with the place where you bought the device (i assume the device still under warranty if you bought half year ago) and ask a replacement device.
Sorry for the inconveniences.