Richard, did you get to the point of getting this testo to work ? You at least had a connection to your ECU with the Android app, it should be possible to have it working with testo, I guess ?
Asking this because I'm taking this up once more. As my (bluetooth) OBDII dongle hadn't worked last year, and my bike is sold in the meantime, I recently gave this another try with my VFR (also equipped with a K-Line, just like the K1300S). Didn't work either. So then I had my chip tested with an Android app called "ELM327 Identifier". Guess what. My OBDII adapter is a Chinese clone. These Chinese, again. Brian knows what I'm talking of (he may have got that Chinese dashcam to a workable state, but on 2 of my bikes it only worked every now and then, by accident). But this now is the second time these sliteyes (got this word from Google Translate, hope it's clear what I mean) got me by my b.lls.
So I'll soon have a decent ELM327- based OBDII bluetooth dongle, and give this a new try. No-one said it was going to be easy, so I'm persisting...