Atheros AR3012 bluetooth adapter not found (linux lite 4.0)

[polarbear]

If you have the Atheros AR3012 (shipped in some lenovo laptops like the z50 that i have) and linux lite 4.0 or ubuntu 18.04, you might have a problem with the adapter, and if you use the command dmesg you are going to get this error:
[sup]bluetooth: hci0: don't support firmware rome 0x31010000[/sup]

I found this solution that solve that issue...

1. Add the ukuu repo to your system:
[sup]sudo add-apt-repository ppa:teejee2008/ppa && sudo apt update[/sup]

2. Install ukuu:
[sup]sudo apt install ukuu[/sup]

3. Install the kernel 4.16.9 with ukuu:
[sup]sudo ukuu --install v4.16.9 [/sup]

4. And finally reboot

The problem with the AR3012 is caused by the kernel 4.15.0 shipped with Ubuntu 18.04 and linux lite 4.0 and the unique kernel i found  that solve that issue is the 4.16.9

pd: i'm not an english speaker so maybe the instrutions or the grammar is bad, sorry for that

[charlyz]

Bumping this thread I was to use / purchase a different adapter for bluetooth use, but I guess searching for a definite answer is a sure thing to do and this problem still exist in the current version but I think I know why, it's because it uses old adapter and it needs to be manually downloaded above steps really work and help me solving my problem and was able to connect my bluetooth speaker doss soundbox xl to my laptop. Just want to say thanks for it.