Data lines connected to the computer's USB port after the home not to use extension and re-plugged the USB line testing.
将数据线连接到电脑的后置us B口不要使用延长线，重新拔插usb线测试。
Data lines connected to the computer's USB port after the home not to use extension and re-plugged the USB line testing.
将数据线连接到电脑的后置us B口不要使用延长线，重新拔插usb线测试。
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