im not 100% sure but i think the latest reventon speedos were going to have iphone /ipad remote facility at some point
if i am correct in in reading your post the v2 is what you have i made a mistake of downloading latest firmaware onto LCD program box then lcd box wouldnt talk to speedo telling me i needed to upgrade software
on rechecking on my PC there are two sets of software one for the v3 hobbywing and one for the v2/v2.1 version speedo i reloaed correct one all is well
unfortunately this is not much good advice if your pc is in a coma
regards fid