What about such a way of revival, but it looks plausible
But I know for sure that "the battery could die due to a long non-use / full discharge," I died in the same way.
There are options for replacing the battery in extreme cases. By the way, the situation when you insert a player for charging (through power supplies) the diode lights up and immediately does not always mean that the battery died, the same behavior will be when charging power is not enough. Often Chinese where 1 AMP is written, in fact they give out 200-300 ml of AMP, and the player needs 500. The usual USB port of PC is always successfully charged.Post has been editedshMatrix_BY - 18.10.20, 15:53