Hi all. My first post. Just received a K3. Using Calibre in Ubuntu. Had same problem with Calibre not recognizing K3. Applied fix described above by changing id to 0004 which worked. Now have new problem:
"The reader has no storage card in this slot.
Traceback (most recent call last):
File "/usr/lib/calibre/calibre/gui2/device.py", line 56, in run
self.result = self.func(*self.args, **self.kwargs)
File "/usr/lib/calibre/calibre/gui2/device.py", line 233, in _upload_books
File "/usr/lib/calibre/calibre/devices/usbms/driver.py", line 97, in upload_books
path = self._sanity_check(on_card, files)
File "/usr/lib/calibre/calibre/devices/usbms/device.py", line 734, in _sanity_check
raise ValueError(_('The reader has no storage card in this slot.'))
ValueError: The reader has no storage card in this slot."
Any ideas because I have absolutely no idea.