It seems that it's connecting in Media Transfer Protocol rather than Mass Storage Mode. When Cure fw is loaded MSM should be re-enabled even if MTP was selected on the device before it 'bricked' (MTP is the default connection method on these particular devices).

I'm now suspecting that there may be more going on than a simple soft-bricking, perhaps there's been a partial failure of the flash chip. We should continue to go ahead assuming a soft problem for the time being however.

Next step is to try another PC with File Explorer options enabled to eliminate the possibility of some unknown, e.g. registry settings, preventing MSM connection of your DS61 to the current PC.