Kernel 3.19.1 appears to fix the firmware loading issue with ath3k. I have done 6 power cycles on my Lenovo with no firmware errors without the hacks from the askubuntu post linked in comment 5
https://lists.ubuntu.com/archives/kernel-team/2015-February/054314.html seems to be the fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1429552 Title: 0cf3:3004 - Qualcom Atheros - Ubuntu 14.10 bluetooth not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1429552/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
