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Nope, the new battery didn't solve the problem. The reader is completely dead. And when I connect a powerpack to charge it, the led lamps on the power pack dies and there is this low volume high frequency sound from it.
So maybe it's not the old battery that is dead or shortcut, but something between the reader usb connector and the battery that couldn't handle the quick charge charger or something else went wrong.
Is there anything more to do/test before I throw it away and buy a new one?
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