The first one: Baidu search visionaryplus.r 14, download and install it on the mobile phone. English Open usb debugging (system setup, application, development) software, and check the second and third ones. Click on the fourth one. Wait a minute. Automatically return to the software. Exit the list of applications that check the black skull logo (rights management) or go to re Manager for testing (online search, download and installation). At this time, it is only temporary permission (generally, mobile phones are ultra-thin and temporary). If you want to get permanent permission, enter the software again and click the fifth one (it may be a little stuck, wait a minute), and you will be prompted to get permission and confirm. The mobile phone automatically rebooted, and the permanent permission was successfully obtained .. Hehe, it's detailed enough. I hope it can be adopted.