LurkerN and fanoush, thanks for the info. Scratches head, so disabling the white list allows a hub to be connected, got it, but is OTG protocol/s (whatever) still active and, as suggested by the wikipedia info, only *one* device can be connected, even with a hub in between?

fanoush: re double posting, I could explain in excruciating detail how I/we arrived at this point. Suffice it to say that I made the mistake of double posting and compounded it, in retrospect, by the statement "Excuse the repetition from another thread:...", by which I meant that the statement following the ":" is literally (almost, for the pedants) repeated from another thread, which it was. You have read it slightly differently. Lets leave it at that before it becomes a big yawn for all