Phew, what a can of worms indeed!!! It really makes you wonder why the outcomes are so extremely different each time one installs or upgrades. Presumably it boils down to some repos failing (in different ways). Either access is blocked ("adaptation0: Store credentials not received.") or the list of available files is incomplete ("...requires droid-compat-v820w-droid-system, but this requirement cannot be provided" -> yet, zypper in droid-compat-v820w-droid-system worked like a charm a few minutes later and all the sensors returned). And there is still that issue of the missing package droid-systemd-tbj (I keep mentioning this hoping someone might actually have an idea where to find it). So, it all boils down to infrastructure problems, doesn't it?

About your try #5: Actually, I didn't do any of this - like no missing layouts or sideloading. Only after having reached 3.0.3.9 I took care of these things. Does this mean you actually got the missing package installed and Bluetooth is working?

At the same time, I cannot help but wonder how time consuming and tedious all the porting must be for TheKit. I am so grateful he's doing that for us! :-)