Bluetooth devices are failed to connect

[mangaldasan]

Ubuntu Studio 25.04 Version

Desktop Environment (if applicable):
Operating System: Ubuntu Studio 25.04
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.12.0
Qt Version: 6.8.3
Kernel Version: 6.14.0-27-generic (64-bit)
Graphics Platform: Wayland
Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
Memory: 31.3 GiB of RAM
Graphics Processor: llvmpipe
Manufacturer: ASUS
Product Name: All Series

Problem Description:
My Bluetooth hardware is installed. I can scan the available BT devices. If I try to connect any BT devices, the connection is failed

Relevant System Information:

Screenshots or Error Messages:

[Jeremy31]

Can you post results from terminal for lsusb; sudo dmesg|egrep -i 'blue|firm'

[mangaldasan]

mangaldasan@AsusGamePC:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 046d:c077 Logitech, Inc. Mouse
Bus 001 Device 003: ID 0b05:17cf ASUSTek Computer, Inc. BCM20702A0
Bus 001 Device 004: ID 046d:c34b Logitech, Inc. USB Keyboard
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 8087:8009 Intel Corp. 
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 002: ID 8087:8001 Intel Corp. Integrated Hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
mangaldasan@AsusGamePC:~$ 
angaldasan@AsusGamePC:~$ sudo dmesg|egrep -i 'blue|firm'
[sudo] password for mangaldasan: 
[    0.196594] Spectre V2 : Enabling Restricted Speculation for firmware calls
[   19.667892] system[1]: systemd-hibernate-clear.service - Clear Stale Hibernate Storage Info was skipped because of an unmet condition check (ConditionPathExists=/sys/firmware/efi/efivars/HibernateLocation-8cf2644b-4b0b-428f-9387-6d876050dc67).
[   20.411831] Bluetooth: Core ver 2.22
[   20.411861] NET: Registered PF_BLUETOOTH protocol family
[   20.411863] Bluetooth: HCI device and connection manager initialized
[   20.411867] Bluetooth: HCI socket layer initialized
[   20.411869] Bluetooth: L2CAP socket layer initialized
[   20.411873] Bluetooth: SCO socket layer initialized
[   20.578265] Bluetooth: hci0: BCM: chip id 63
[   20.579251] Bluetooth: hci0: BCM: features 0x07
[   20.595255] Bluetooth: hci0: BCM20702A
[   20.595258] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000
[   20.617890] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[   20.617896] Bluetooth: hci0: BCM: 'brcm/BCM20702A1-0b05-17cf.hcd'
[   20.617897] Bluetooth: hci0: BCM: 'brcm/BCM-0b05-17cf.hcd'
[   20.669136] [drm] Found UVD firmware Version: 1.64 Family ID: 9
[   20.670039] [drm] Found VCE firmware/feedback version 40.2.2 / 15!
[   24.448478] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   24.448484] Bluetooth: BNEP filters: protocol multicast
[   24.448488] Bluetooth: BNEP socket layer initialized
[   24.458701] Bluetooth: MGMT ver 1.23
[   24.516566] Bluetooth: RFCOMM TTY layer initialized
[   24.516578] Bluetooth: RFCOMM socket layer initialized
[   24.516583] Bluetooth: RFCOMM ver 1.11
[   54.964975] audit: type=1400 audit(1754221363.481:242): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater.firmware-notifier" name="/proc/sys/vm/max_map_count" pid=2943 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[ 2925.045222] audit: type=1400 audit(1754224233.534:243): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater. Firmware-notifier" name="/proc/sys/vm/max_map_count" pid=6901 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[12264.617587] Bluetooth: hci0: Opcode 0x200c failed: -110
[12264.617597] Bluetooth: hci0: command 0x200c tx timeout
[12264.617598] Bluetooth: hci0: Unable to disable scanning: -110
[12266.665618] Bluetooth: hci0: Opcode 0x0401 failed: -110
[12266.665623] Bluetooth: hci0: command 0x200c tx timeout
[12269.805891] Bluetooth: hci0: Received unexpected HCI Event 0x00
[13653.965349] audit: type=1400 audit(1754235033.293:246): apparmor="DENIED" operation="open" class="file" profile="snap.firmware-updater.firmware-notifier" name="/proc/sys/vm/max_map_count" pid=19642 comm="firmware-notifi" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
mangaldasan@AsusGamePC:~$

[Jeremy31]

Lets give it the firmware it is looking for cd /lib/firmware/brcm && sudo wget https://github.com/winterheart/broadcom-bt-firmware/raw/refs/heads/master/brcm/BCM20702A1-0b05-17cf.hcd
Reboot