I apologize for a double post but this looks like the better thread to report this, despite it's age. Everything was working perfectly until the massive update that came out last night, 06/06/2018. Now cannot find internal Atheros BT adapter in Blueman-applet. It appears to allow me to enable BT. Lights on but no one home. Appears to me the Linux BT firmware is borked, again.

user@UX32VD:~$ rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
2: asus-wlan: Wireless LAN
	Soft blocked: no
	Hard blocked: no
3: asus-bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no


user@UX32VD:~$ dmesg | grep Blue
[    2.999406] Bluetooth: Core ver 2.21
[    2.999422] Bluetooth: HCI device and connection manager initialized
[    2.999425] Bluetooth: HCI socket layer initialized
[    2.999428] Bluetooth: L2CAP socket layer initialized
[    2.999434] Bluetooth: SCO socket layer initialized
[    3.020951] Bluetooth: hci0: don't support firmware rome 0x11020000
[    3.028458] Bluetooth: hci0: don't support firmware rome 0x11020000
[    4.600699] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.600704] Bluetooth: BNEP filters: protocol multicast
[    4.600709] Bluetooth: BNEP socket layer initialized


user@UX32VD:~$ lspci -knn | grep Net -A2; lsusb 
03:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01)
	Subsystem: Bigfoot Networks, Inc. Killer Wireless-N 1202 Half-size Mini PCIe Card [1a56:2003]
	Kernel driver in use: ath9k
	Kernel modules: ath9k
Bus 002 Device 004: ID 0cf3:3004 Atheros Communications, Inc. AR3012 Bluetooth 4.0
Bus 002 Device 003: ID 04f2:b330 Chicony Electronics Co., Ltd Asus 720p CMOS webcam
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp. RTS5139 Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


user@UX32VD:~$ lsusb; dmesg | egrep -i 'blue|firm'
Bus 002 Device 004: ID 0cf3:3004 Atheros Communications, Inc. AR3012 Bluetooth 4.0
Bus 002 Device 003: ID 04f2:b330 Chicony Electronics Co., Ltd Asus 720p CMOS webcam
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0bda:0139 Realtek Semiconductor Corp. RTS5139 Card Reader Controller
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
[    0.316322] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[    2.361902] psmouse serio4: elantech: assuming hardware version 4 (with firmware version 0x361f02)
[    2.999406] Bluetooth: Core ver 2.21
[    2.999422] Bluetooth: HCI device and connection manager initialized
[    2.999425] Bluetooth: HCI socket layer initialized
[    2.999428] Bluetooth: L2CAP socket layer initialized
[    2.999434] Bluetooth: SCO socket layer initialized
[    3.020951] Bluetooth: hci0: don't support firmware rome 0x11020000
[    3.028458] Bluetooth: hci0: don't support firmware rome 0x11020000
[    4.600699] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.600704] Bluetooth: BNEP filters: protocol multicast
[    4.600709] Bluetooth: BNEP socket layer initialized
[    4.855074]  rtsx_usb_ms memstick rtsx_usb_sdmmc vboxdrv(OE) bnep bbswitch(OE) rtsx_usb binfmt_misc ath3k btusb btrtl btbcm btintel bluetooth asus_nb_wmi asus_wmi mxm_wmi sparse_keymap snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_codec_realtek arc4 snd_hda_codec_generic kvm irqbypass crct10dif_pclmul crc32_pclmul snd_hda_intel ath9k ghash_clmulni_intel snd_hda_codec aesni_intel snd_hda_core aes_x86_64 snd_hwdep lrw gf128mul glue_helper ath9k_common ablk_helper cryptd ath9k_hw snd_pcm ath input_leds snd_seq_midi mac80211 snd_seq_midi_event snd_rawmidi serio_raw cfg80211 snd_seq snd_seq_device lpc_ich snd_timer snd mei_me soundcore shpchp mei int3403_thermal acpi_als kfifo_buf uvcvideo int3402_thermal int3400_thermal wmi acpi_thermal_rel int340x_thermal_zone