So I finally managed to unpack my Oaks (sorry, way too late!)
After having absolutely no luck with any automatic upgrade (neither online nor local) I flashed the firmware myself with a CP2102.
After this, I tried to connect the Oak but it fails all the time (just jumps back to config mode, no debug output either beside ROM boot).
Using my mobile phone as a hotspot does works (WPA2 with a simple password), but I can't run that all the time of course, it needs to work with my home network.
My WiFi is using WPA2 with a max-length hex-key as password (256 bit/64 characters).
I already had issues with that on Debian when I connected my Raspberry Pi 3 with it where I had to manually enter the key in the config file since it's not accepting my key as a valid string-based key (complains that it's too long and does not recognize it as a hex-key).
Is there a way to support this with the Oak, too?
I am fine with somehow manually saving that info on the Oak instead of using the config web tool.
Max-length WPA2 hex keys look like this:
90a7af05f1dc7e4c0ab2bacfa63d1bbe08bee9fe17363a32c820716cf6f7f79d
da985a6a5a08ac5821ec8d8ce971a490f927f7fe86c5533f5a501a1b7e581bd6
3f8c940f045c11ad83dac79ee791332ded269defa05d260cdc177344409e8a3b
