维修指引
W920内部结构
拆装机视频
W920首单注意事项
报警“请链接电源”
报警“硬件异常，请联系售后”
报警“驱动轮卡住，请按照说明书处理”
报警“窗宝气压不足，请取下重新吸附”
报警“请勿放置在边缘位置”
开机风机不工作
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