How the mobile phone (that is off) informs the Windows PC (with installed drivers "MediaTek PreLoader USB VCOM port" and "MediaTek USB Port") how to identify itself: as device - "MediaTek PreLoader USB VCOM port" or as - "MediaTek USB Port"?
When I plug the phone to USB, Windows PC connect it sometime through "preloader USB", sometimes through "just USB" ports, sometimes both in sequence (I see it from WMI events). I don’t see any pattern related to "time after next attempt" or "volume buttons pressed".
P.S This is "the phone off" state when battery is inside. What are correct names for those states (battery "in" and "outside")? When battery is extracted - device is not recognized as USB device by PC.