I have a feeling it was to do with a usb device in the kindle, since I haven't has it go into diags yes from my testing.
I'm in diags again, I'll try to do that!
Anyway,
https://github.com/llakssz/KindleLaz...-upsidedown.sh
KindleLazy now has upside down support

Thanks Yourcat for the work that helped.