The App Store is prohibited from installing applications. We can modify it in the system (5 steps) to operate. This demonstration model is vivox60Pro; system: OriginOS5.12; the following are detailed steps:
1 Open settings
Open phone settings and enter; 1. Open settings
2 Click Security and Privacy
Click Security and Privacy on the settings home page ; 2. Click Security and Privacy
3 Click More Security Settings
to enter and click More Security Settings; 3. Click More Security Settings
4 Click Application Installation
In More Security Settings, click Application Installation; 4. Click Application Installation
5. Authentication button during installation
In Application Installation Here, turn off the button behind Authentication during installation.
5. Authentication button during installation