LTDJ
Head-Fier
Unfortunately it doesn't work when plugged in. It only comes to life when I plug it in doing the factory reset, and even then it doesn't behave normally i.e. doesn't work. It only flashes the led and plays the chime at 2x the speed/pitch, but it doesn't react to input or connect via bluetooth.If it works normally when plugged then it is your battery that is dead look on youtube at michael bruce channel he replaced the battery on the cheap wuth a higher capacity
Since I have nothing to lose, I took it apart yesterday and disconnected the battery but to no avail. So it looks like it's fried. Funnily enough it originally started misbehaving when I plugged it in for charging - originally I thought I destroyed the micro USB port but it looks more like the charger might have contributed to this.