It started with (for me) a surprise:
A battery was already settled for the cheap price
(Otherwise would have cost as a single piece as much as here the package).
Of course, immediately a truly hands and tried.
Device is detected, press button, et voila: anything with a click.
Contrary to the instructions in my Smarty (G3 with 5.0)
not to trigger the Android but the Apple-button charge.
So that I can live.