The Xiaomi plug board can't be charged after a few days. If that's the case, there's something wrong with the board. If there is a problem, it is necessary to open it to see if there is false sweat inside, if it is false sweat, it is welded on again. Check the socket inside for fuses, fuses cut, if you laugh, but put a new one on. Millet is still a brand machine, the quality should not be too bad.