If that command is not installed you can install it with: pkexec apt install dmidecode If you do not know your system manufacturer or model number you can use the following command: pkexec dmidecode -t01 If you have it, copy it to your work directory and proceed at 'Converting the firmware' below. Mount your Window$ partition and do a 'find' on the filename, relacing the '.hcd' tag with '.hex'. You can obtain this by visiting the manufacturer's website and looking up your model number.īUT: Before getting wrapped around the axle getting the file from the manufacturer's website, if you are dual-booting a Window$ system, you may already have the. The complicated part of this is obtaining the firmware from a Windows(tm) driver package and converting it, you will first need a driver package for your card from your computer or hardware manufacturer which will likely come in the form of a windows executable file. You will need this filename such as brcm/BCM20702A1-0a5c-21e6.hcd. You can typically find the name of the missing firmware file by reading the kernel error message with one of the following commands: pkexec dmesg | grep -i bluetoothĪnd you will see an error message with the filename, for example: bluetooth hci0: firmware: failed to load brcm/BCM20702A1-0a5c-21e6.hcd (-2)īluetooth hci0: Direct firmware load for brcm/BCM20702A1-0a5c-21e6.hcd failed with error -2īluetooth: hci0: BCM: Patch brcm/BCM20702A1-0a5c-21e6.hcd not found You will need this identifier such as 0a5c:21e6, shown above. See this wiki entry for more information on identifying USB devices. Or Bus 004 Device 006: ID 0a5c:21e3 Broadcom Corp. Your Bluetooth card will likely be on the USB bus, for example: Bus 003 Device 016: ID 0a5c:21e6 Broadcom Corp. Your bluetooth adapter, while on the same card as your wifi will have a seperate hardware ID. You will need to identify both your Hardware ID and the name of the missing Firmware file.
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