Thanks dje2006dje for the information. My old Teclast X98 dual boot has exactly the same boot selector image on the start up screen, but unlike Hi12 there is touch control, so it works like intuition tells you it should. Lacking any user manual, how is a new Hi12 user supposed to know?
On the Windows charging issue, don´t you think other users should have complained if it is a general issue and not my specific unit being broken. I wonder what Chris saw when he tested?