@Shanling is there any way from stopping the M0 from automatically powering on when plugging into charge? That combined with automatic connection to the last device as BT receiver and the screen auto-off, often means it starts to drain battery as soon as it is unplugged from the charger as there's no way to tell if the DAP is powered on or not just by looking at it. I have often Charged the M0, put it in my bag, went about my day, then try to power the M0 on for some music only to find I'm actually powering it off with almost no battery as it was on all day. This also needlessly accelerates the degradation of the battery itself. Unless it's a planned obsolescence, in which case...
Powering off just after plugging in (actually, after the booting process has completed) every time seems like an unnecessarily cumbersome process just to make sure it stays charged. I have auto-off enabled but that only works in DAP mode and not BT receiver mode.
