推荐回答（3个）
手机出现USB 连接电脑后提示：连接后无反应、提示路径太深、传输中断等现象。一般是由于USB供电不足或不稳定导致，建议您试试以下方法:
1、重启手机（和电脑）后再连接；
2、台式机建议连接后置usb接口；
3、笔记本建议搭配有外置供电的usb hub后使用；
4、换根数据线看是否可以使用
（micro usb接口的数据线可以通用）；
5、按照1、2、3操作后无效的，可以打开，电脑设备管理器-->通用串行总线控制器-->USB Root Hub-->属性-->电源管理-->取消勾选“允许计算机关闭此设备以节约电源”。
把所有的USB Root Hub都如此设置后再重新连接测试一下。
具体看电脑系统版本而言。windows8以下的windows系统，不需要特殊对电脑进行任何设置，只需要手机连接电脑，电脑下载对应的手机驱动即可正常连接手机助手等软件。
windows8或是windows10系统，需要对电脑系统进行相关设置，电脑才能够下载并安装手机驱动。
左键点击任务栏右侧的 通知 图标 — 所有设置 — 更新和安全；
恢复 — 高级启动 — 立即重启；
电脑重启进入选择界面 — 疑难解答；
启动设置 — 通过按数字键盘上的 7 禁用驱动程序强制签名；
电脑再次重启，手机使用原装数据线连接电脑，下载手机驱动后，即可正常连接手机助手等软件。
备注：手机在连接电脑时，需保持屏幕解锁，否则电脑无法识别读取内容。
安卓手机通过USB连接电脑，需要先打开usb调试
下载相应手机的驱动程序并安装到电脑上
用usb线把手机和电脑连接起来，并勾选允许访问设备数据
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