So it's being seen by G7ToWin but with its info being only partially read. I note it's being identified as "Drive" not "DriveSmart 61" which may be significant, but maybe not. Perhaps all that series identify that way although i'd have expected it to show the model number as well.
EDIT: If you are absolutely sure that it's an EU regional DS61 device, which would be evidenced by its model sticker naming and it having a European map entitlement, then it would be HWID 2588. What i find concerning is that the 'safe-named' 258801000680.rgn file was rejected by Updater.exe however that might be due to the device having 'lost' its model number, HWID and UID as is apparently reported by G7ToWin. Therefore, because Updater's query of the device's details was answered with "0" for HWID rather than the expected "2588", the "no updates are available for your product" message was invoked.
If you want to try forcing the fw flash, change the RGN's file name to out.rgn then flash with Updater.exe. It might kill it or it might restore it, at least partially. Risk is minimal as i strongly suspect the device has a damaged flash chip most likely, and if so it will eventually die anyway. Your call, good luck.