3. Each board must be tested in the following areas: sound, internet access, 3D graphics card, SD card, charging and discharging, internal and external displays, etc. 4. Each board must undergo more than two stability tests before shipping and shipping. ...
机型：小新AIR 15ITL 2021 板号NM-D211故障：客户描述外接音箱的时候用的是USB+耳机插口，插入USB家...
故障表现usb小板两个接口只能用一个 另一个报电涌过高，无法使用，拆机打值usb小板，发现usb-a的vcc...
刷了不认固态， 已确认是BIOS问题