@thepossessor With PMOS on sdcard and Manjaro on the emmc I tried many times to follow the pine64 hints to flash ANX but got no out put or responses to indicate anything was happening (turns out that's normal) so also followed the prompt to dmesg. And redirect to a file 'cos too difficult/laborious to look at on device. It wasn't working in that set up, so followed another guy's post to use mobian/phosh on on sdcard. No terminal output, but after a while dmesg output showed no errors or comments in the process right up to 'power down' or something. So it looked complete. I don't understand the tech stuff here but my main motivation in this is thinking that it will make usb connection possible to file manager on pc. Anyhow , after that I re-plugged the phone whilst still in mobian and and got connected to pc. Next: Flashed UT to emmc to see if if it would work there also, but no. Flashed mobian to emmc. usb connection to ubuntu on pc straightforward and easy. Just right for me! I'm not sure it was the ANX flashing that did it...but it's the first time after lots of mucking about that I can just connect to pc with usb and copy files , so ...

@ThePossessor Yes I agree that it is an extra super paranoid scenario. But maybe fixing this issue will help implement this feature so it could be a nice addon to Ubuntu Touch's security measures. I prefer having a fixed MAC address because I use it to identify my phone in the network. And of course it can be spoofed, but it's way more comfortable this way. You'll always have to balance convenience and security.

@ThePossessor Yes, they are aware and actively working the problem, with some potential solutions. This all takes time, and I for one am very impressed how far all the development teams have come in such a short time. Very soon I think, the phone will be ready to be a daily driver.

Anyone else wanna share experience with bluetooth carkit?

@thepossessor Thanks for letting me know, and a big welcome back to the Luxembourg timezone