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我有datalogic qd2131手持扫描仪，想在扫描usb-oem接口后与java pos一起使用扫描仪死了请帮助启用扫描仪
那是很久以前在一个遥远的星系中......
但断开设备，按住 5 秒触发器，连接设备。释放触发器。几秒钟后它会闪烁。然后重新连接设备。