As mentioned I am also posting on a similar French forum. The guy helping me there provided me with this link ("at your own risk"):-
https://mobile.x431.com/m/sv.aspx?TypeId=36&fid=t8:36:8
Using this I have successfully loaded the Launch application onto my Android (Galaxy) smartphone, it has recognised my Launch sign-in, knows who I am, recognises it's an X431 Pros Mini V3, how long my two year free download period has to run - all looking very good. I get the same screens as on my X431 save for they are missing the lower portion.
HOWEVER what I haven't managed to do is to get it to do my free download.
It shows I have no modules loaded (that's understandable - they are, of course, stored on my x431), that I therefore have 103 modules to update, but when I click on "update " it whirls for a few seconds but nothing downloads, and it returns to the update page. If I click on "renew" I can pay $599 to renew - despite (on the same page) its giving the date of the end of my two years free update period.
Any ideas please ?
Tony