以小米max2手机为例,可参考以下步骤打开usb调试:
1、准备一根OTG线,注意购买的时候看好线是typeA接口还是typeC接口。
![](https://iknow-pic.cdn.bcebos.com/ac345982b2b7d0a2c012a30dd9ef76094a369a43?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
2、然后将OTG线插入手机以及鼠标。
![](https://iknow-pic.cdn.bcebos.com/0dd7912397dda14465d2cb22a0b7d0a20df48643?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
3、可以看到手机通过OTG线连接鼠标后,手机屏幕有一个鼠标箭头,可以通过箭头打开USB调试。
![](https://iknow-pic.cdn.bcebos.com/902397dda144ad3490642017c2a20cf430ad8543?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
4、然后通过鼠标,依次打开设置——更多设置。
![](https://iknow-pic.cdn.bcebos.com/cb8065380cd79123513b33e4bf345982b3b78043?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
5、打开更多设置后,可以看到有开发者选项,点击它。
![](https://iknow-pic.cdn.bcebos.com/64380cd7912397dd66a23f944b82b2b7d1a28743?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
6、对于小米手机来说,如果你没有找到开发者选项,可以在【关于手机】中多次点击MIUI版本打开开发者模式,这样就会出现开发者选项了。
![](https://iknow-pic.cdn.bcebos.com/96dda144ad345982785142021ef431adcaef8443?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)
7、打开开发者选项后,就可以看到有USB调试了,点击将USB调试打开即可。
![](https://iknow-pic.cdn.bcebos.com/a044ad345982b2b71b449e5423adcbef77099b43?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto)