1. When installing the MEXC app on a OnePlus phone, a security prompt appears: High-risk virus:
This software contains non-compliant content and may cause unnecessary loss to your property or account. Please use it with caution. Prompt: This app is a high-risk app and cannot be installed. See Figure 1.

2. Click the settings button in the upper right corner to enter the settings page. See Figure 2.

3. Security guard – Authorize this installation. See Figure 3.

4. Security prompt: High-risk virus: [Fraudulent app] The app is suspected of fraudulent behavior, please use it with caution. Prompt: This app is a high-risk app and cannot be installed. See Figure 4.
![Security prompt: High-risk virus: [Fraudulent app] The app is suspected of fraudulent behavior, please use it with caution. Prompt: This app is a high-risk app and cannot be installed](https://media.shuijingwanwq.com/2023/06/4.jpg)
5. Security guard – Close. See Figure 5.

6. Security prompt: High-risk virus: [Fraudulent app] The app is suspected of fraudulent behavior, please use it with caution. Prompt: This app is a high-risk app and cannot be installed. See Figure 6.
![Security prompt: High-risk virus: [Fraudulent app] The app is suspected of fraudulent behavior, please use it with caution. Prompt: This app is a high-risk app and cannot be installed](https://media.shuijingwanwq.com/2023/06/6.jpg)
7. Turn off the phone’s WLAN and mobile data. See Figure 7.

8. Install again, security prompt: Not security reviewed. Current network conditions are poor and online detection cannot be performed, please install with caution. See Figure 8.

9. Security prompt: Not security reviewed. Current network conditions are poor and online detection cannot be performed, please install with caution. Authorize this installation. See Figure 9.

10. Installation complete. See Figure 10.

