I got the Bluetooth dongle plugged in .
And installed this.
apt install bluez*
sudo apt install blueman
This is the rest that i have not done yet.
Is this right?
Starting the Bluetooth Daemon
To have Bluetooth available each time you boot your computer, we need to enable and start bluetooth.service, the daemon that Bluetooth connectivity. We do this with systemctl.
Enabling the service means it'll be started with each boot of your computer. Starting the service makes it run right away, so you can use Bluetooth without having to reboot your computer.
sudo systemctl enable bluetooth.service
sudo systemctl start bluetooth.service
Checking the Status
We can check that Bluetooth is up and running using the rfkill command. This scary-sounding command lets us check the health and status of wireless communications, and Bluetooth falls into that category.
Using rfkill without any command-line parameters lists the wireless adapters, and shows whether they are blocked or unblocked.
rfkill
We can see that Bluetooth is present, but blocked. We can sort that out using rfkill with its unblock option. Of course, you might find that your adapter is unblocked, in which case you don't need to perform the next step.
I would suggest that you open up "App center" and in the search-bar type "Bluetooth" - the App center should then give you an option to install some apps and I would recommend the following ones: "bluez"; "modem-manager"; "ofono" and "bluez-tests"
All of the above apps are Canonical apps so they should work and help with your settings
That was not posted as a quote. It appeared to be your own content.
Regardless, I seem to be annoying you with my questions, so I will leave it to others, who most certainly have more experience with Wireless/Bluetooth/Echo, to assist you further.
No you were not annoying me. There is a language gap and I sometimes have to make edits to my post. I am still working on it. In case I can not get it going, can I use the Bluetooth for other things?
One last thing, looking at the Echo's Quick Start Guide for Gen3, it seems to suggest that you may have no choice but use the Amazon App to perform some minimum configuration activities via smartphone ... before the Echo is recognized by your computer's Bluetooth or Wifi.