![]() ![]() ![]() UPDATE: Looks like it might be motherboard-related (AsRock P67 Extreme4 Gen3 in my case): trying the same adapter on a different laptop makes it work fine (as long as I provide firmware). Fix Broadcom BCM20702A0 driver error Our suggestions to fix this issue are as follows: Let us see in detail. rw-r-r- 1 root root 34700 Jun 13 19:56 /lib/firmware/brcm/BCM20702A1-0a5c-21e8.hcd The Broadcom BCM20702A0 driver is a device that allows specific Bluetooth components to communicate efficiently with your Windows 11/10 operating system. $ dmesg | egrep -i 'blue|firm' | cut -c 16-īluetooth: HCI device and connection manager initializedīluetooth: L2CAP socket layer initializedīluetooth: hci0: command 0x0c03 tx timeoutīluetooth: BNEP (Ethernet Emulation) ver 1.3īluetooth: BNEP filters: protocol multicast Select browse my computer for drivers and select the folder with the extracted cabinet file. I've downloaded and installed the firmware file from Winterheart repo, even extracted and converted the firmware from Windows 8 driver package, but the result is still the same: the errors above and nothing showing up in the output of hcitool dev.Īny help would be greatly appreciated! Some diagnostic info below: $ lsusb | grep Bluīus 005 Device 002: ID 0a5c:21e8 Broadcom Corp. Open your device manager, right click on Bcm20702a0 and select update driver. ![]() The symptoms are always the same: I get the following errors in my kern.log: Bluetooth: hci0: command 0x0c03 tx timeoutīluetooth: hci0: BCM: Reset failed (-110) ![]() I'm trying to make a Broadcom-based Bluetooth USB adapter work in Ubuntu 20.04 ( this one, to be specific). ![]()
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