Asus USB-BT211 / Atheros AR3011 firmware loading?

[Michael ODonnell]

You've so far done everything right; ath3k is the correct
device-specific driver for the USB gizmo in question and
/lib/firmware/ath3k-1.fw is the correct firmware file,
in the proper location, and the USB infrastructure even
noticed the device and reported some generic info about it.

Unfortunately, you're likely enjoying a known bug in the
handling of that device:

   https://duckduckgo.com/?q=0cf3%3A3000+firmware

...so backports may be the path of least resistance.