Image #3 - when I run dmesg | grep -i blue the result is as follows (confirms the issue is a firmware problem): Image #2 - Core of problem, no option to output sound to connected Bluetooth device: Image #1 - Bluetooth is connected to Bluetooth card in PC (screen shot is of 'blueman' software as suggested in Bluetooth won't find devices!): Basically I am not able to load the *.hcd file I made from a *.hex file into the kernel (my interpretation of this issue with my very limited understanding). The problem is that the O/S does not provide an option to send audio output to the Bluetooth controller - this is a Bluetooth controller firmware issue. Here example how it can looks (note about brcm/brcmfmac4356-pcie.I am able to establish a connection between a Bluetooth ear-piece and the Bluetooth controller in the PC. Without WiFi firmwareīluetooth will not initialize and will not work properly.įirmware for WiFi already included to kernel, but you may need to do additional These devices requires two kinds ofįirmware - first for WiFi, and second for Bluetooth. WiFi chipset (this can be BCM43XX 802.11ac Wireless Network Adapter or just Some Bluetooth controller (for example, BCM4354 and BCM4356) are integrated to Notes about combined WiFi+Bluetooth devices Here quick naming convertion: Original name There may be incorrect naming between presented firmware name and name You may list all Bluetooth devices like this:īluetooth: hci1: BCM20702A1 (001.002.014) build 0000īluetooth: hci1: BCM20702A1 (001.002.014) build 1467īluetooth: hci1: Broadcom Bluetooth DeviceĬongratulations, now your bluetooth device successfully loaded. When you inserting Broadcom Bluetooth device you prefered Linux distribution There are autogenerated DEB and RPM packages for RedHat and Debian based distributions. InstallationĬheck your Linux distribution repositories. As a repository maintainer, I cannot provide security fixes.

You will have to use these devices at your own risk. Since Broadcom has stopped active support for its consumer devices, your system may be subject to security risks. Recently several vulnerabilities have been discovered in the Bluetooth stack such as CVE-2018-5383, CVE-2019-9506 (KNOB), CVE-2020-10135 (BIAS) and more.

Since February 2017, Broadcom ships their drivers directly to Windows This package intentended to provide firmware of Broadcom WIDCOMM® Bluetoothĭevices (including BCM20702, BCM20703, BCM43142 chipsets and other) for Linux Broadcom Bluetooth firmware for Linux kernel

Broadcom bcm20702 driver