1. In the mobile phone we find the "application" icon to enter, if you are not on the phone desktop we press home button back to the desktop.
2. Into the application management interface we will see in the middle of the "Set" icon click to enter.
3. Then in the setup we will find that there is a "General" menu click and click on "about the device" as shown in the following figure.
4. Now we see a "build number", we just click 7 times for a quick connection until we see "developer mode enabled" to stop.
5. Then, as shown in the following figure, we click on the "<" icon to see that there is a "developer option" in it.
6. Then in the inside we can "USB debugging" click to open or close the OH.
Cloud Habitat Community Small set to remind you that the USB mode as long as you do not need to open once after the operation, but restore the factory settings still need to reopen OH.