Aura H2O Insert disk into drive;;

I have purchased in Dec 2014 but i don't use it a long time. Yesterday, I connected the h2o to my computer. My computer will recognize that a mass storage device has been installed but wont let me open it. Within the My Computer Window, it will show as "Removable Disk". When I double click on it, it states the following; "Insert disk into drive".

it show as "Kobo eReader-3.12.0 USB Device" for drive on Device Manager, but 3.17GB space "Unallocated" on Disk Management.

I have reset the eReader to factory settings. and change different USB cable, uninstall and reinstall the drive, testing other computer. but it same issue.

What should i do?:help:

Happy new year, friends.