Joke Collection Website - Blessing messages - Where is the function of Letv's mobile phone refusing to install unknown software?

Where is the function of Letv's mobile phone refusing to install unknown software?

Take letv 1Pro mobile phone as an example.

operation sequence/order

1. To start, first find the application "Settings" icon on the mobile phone desktop, and click to enter the new operation interface.

2. Then enter the setting operation interface, find the "password security" option, and click to enter the new operation interface.

3. After entering the password security operation interface, click the "Unknown Source" switch button to refuse to install unknown software.