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Re: BT dongle Q


On Fri, Mar 02, 2018 at 12:32:05PM -0500, Gene Heskett wrote:
> Greetings Bluetooth guru's;
> I have an old bt dongle that is apparently paired with a now non-existent 
> A7 device.
> What is the command (I think I have all the tools installed) that will 
> unpair it so that I can at least scan for a fitbit BTLE device 6" away?
> Thanks.

Assuming Bluez5, bluetoothctl should print a list of paired devices.

$ bluetoothctl
[NEW] Controller 00:18:E4:XX:XX:XX xxx [default]

To unpair a device, use remove [MAC], i.e.

[bluetooth]# remove D8:2A:7E:XX:XX:XX
Device has been removed

BTLE devices require Bluetooth 4.0, so if your BT dongle is really old
(mine serves me 10 years or so), it won't be able to see BTLE:

[bluetooth]# show
Controller 00:18:E4:XX:XX:XX
        Name: BlueZ 5.43
        Alias: xxx
        Class: 0x000104
        Powered: yes
        Discoverable: no
        Pairable: yes
        UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb)
        UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb)
        UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        Modalias: usb:zzzzzzzzzzzzzzz
        Discovering: no