Vivo xplay3s USB Debugging How to open? Where does vivo xplay3s USB open?

1 in the Vivo xplay3s mobile phone application interface to find the "Settings" icon, click to enter after we find "system settings" and then go to find inside the "about the phone" (about the tablet) we now click on it to enter.

2 in the open about the mobile interface we find "version number" and then click 7 consecutive times, direct screen display after the prompts we then click the "Back" Settings menu interface to select "Developer Options"

3 OK now we go to the developer option and then we click on the box behind the "USB debugging" to select it.