They are working now. You might want to try picking up a new µSD card and copying a Clara HD firmware image to it.
To request a firmware image for your devices, please post in the appropriate thread in the Kobo Developer's Forum. See the
Index of SD Card Image Firmware Request Threads to locate the appropriate thread.
You will need to have Private Messages enabled before you can be sent the link. If you don't see that option in the "Edit Options" of the User control panel, you should post in the
Requests to enable Private Messages thread to ask for them to be enabled.
Once PMs are enabled, please post your request in the appropriate forum.