The tutorial method for installing third-party software in Xiaomi Box is as follows:

Tools/materials: Xiaomi TV box 4C, SanDisk U disk 128G.

1. Insert the USB flash drive of the downloaded third-party software into Xiaomi box.

2. The system will automatically check the U disk in the car and click Open Now.

3. Click External Storage.

4. Click the downloaded third-party software.

5. Click Install to complete the installation of the third-party software.