Thinkpad笔记本开机提示错误Error 1804 4周前 (04-02) Thinkpad笔记本开机提示错误Error 1804已关闭评论 Thinkpad E40 开机提示错误 ERROR 1804: Unauthorized network card is plugged in - Power off and remove the WAN card . 解决办法 开机后,... 阅读原文