How to lock the app?

1. Click the "Recent Apps" icon on your phone (some phones operate by "swiping up the screen");

(Click the recent apps icon on your phone)

(Swipe up the screen)

2. Find TC Display, click the "More" button in the upper right corner of the application (some mobile phones can click the "application icon", some can long press the blank space of the app, and some can directly pull down the application screen to lock) [Each lock method Different】;

(Click the more icon)

3. Select "Lock" in the drop-down menu: