BLE / BD address is 00:00:00:00:00:00 problem

[sintian]

Sorry, Bluetooth was used successfully before, but I don’t understand what is wrong now, i.mx6 has not been able to detect the Bluetooth device (same as before, refer to: https://github.com/ TechNexion-customization/ubuntu-tn-imx/issues/10). I have confirmed the firmware files and the modification in qemu_install-imx6_7.sh. Besides, the wifi function is normal. Is there any way to detect the problem? root@technexion:~# hciconfig -a hci0: Type: Primary Bus: UART BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0 DOWN RX bytes:1 acl:0 sco:0 events:0 errors:0 TX bytes:8 acl:0 sco:0 commands:2 errors:0 Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 Packet type: DM1 DH1 HV1 Link policy: Link mode: SLAVE ACCEPT

root@technexion:~# hcitool dev Devices:

root@technexion:~# demesg | grep tooth [21.748730] Bluetooth: hci0: Frame reassembly failed (-84)

Any help will be most appreciated.

[wigcheng]

Did you tried re-flash image again and it still doesn't works? Because you said "Bluetooth was used successfully before, but I don’t understand what is wrong now", you don't provide specific reproduce steps, I can't not give you comments, if you works after re-flash image, I think you should be enable or disable something cause bluetooth applications conflicting.

Thanks

[sintian]

HI @wigcheng : Yes,I used the SD card to refresh the image, and then put the firmware file into it. I used to successfully use Bluetooth like this before, but now it fails.

Thanks!

[wigcheng]

Yes, I know your point, so my question is what did you do after flashed and the status is bluetooth works perfectly? Install something or enable/disable some configuration, or it just random failed, or it works back after reboot several times?

If you cannot provide further information, I have no direction to give you comments.

[sintian]

Sorry for not being clear enough, the steps I did after flashing are as follows: $sudo apt-get install zip $sudo apt-get install -y connman (Winscp put qca9377-3_qca6174-3_firmware_20191128.zip to /home/ubuntu) $mv /home/ubuntu/qca9377-3_qca6174-3_firmware_20191128.zip /lib/firmware/qca9377-3_qca6174-3_firmware_20191128.zip $ Unzip qca9377-3_qca6174-3_firmware_20191128.zip

At present, it was only successful when following 2ac1831 for the first time. At that time, it was possible to use Bluetooth directly on the panel without changing the configuration.Later, even after the refresh, just following the above steps failed. thanks.

[sintian]

HI @wigcheng Is there any more information I need to provide? Any help will be most appreciated.

[wigcheng]

So the issue happened after install connman, did you try the issue exists without connman? Actually connman and network-manager are same function as common sense, so they cannot exist at the same time, they will conflicted, but I'm not sure why it impact bluetooth behavior.

If you want use other application to control wireless functions, please remove network-manager and blueman first to avoid race condition.

Thanks

[sintian]

Ok, I will try it and report the situation later. Thanks for your reply!

[sintian]

HI @wigcheng I didn't expect the two to be in conflict, that's the problem! Bluetooth function is already normal, thank you very much!

[wigcheng]

Congrats! I close this ticket, thanks for your feedback.