As bad as the situation is for @kif, this at least is a piece of information that was missing until now. I would have thought they'd have included that patch routine in the Pro1X stock ROM, too...
And it is seems a good thing I didn't venture to replace my broken Pro1X screen with my the last Elephone replacement screen just yet...
@Hook's recipe actually sounds like the one promising option that remains. Maybe someone with a Pro1 that's defective enough in other parts to still be useful could offer it as a service? 😉 I'm afraid I can't offer mine just yet as it is still kind of work