It sounds like a problem with the device, how were you launching KOReader? KSM, or from within nickel? A hardware reset might be needed if it is not the battery or some other hardware failure.
Whenever an eink device stops working (for any reason) whatever happens to be showing on the screen remains.
Luck;
Ken
Last edited by Ken Maltby; 01-13-2019 at 12:17 PM.
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