Scaling adjustment of Mijia projector refers to adjusting the aspect ratio of the projected picture to the ratio suitable for the current demand, so as to obtain the best visual effect when watching movies, playing games or displaying documents. The following is the method to adjust the magnification of Mijia projector:

1. Open Mijia projector, enter the main interface, and click the "Settings" button.

2. Select the "screen adjustment" function in the setting interface.

3. Enter the screen adjustment interface and select the "Proportion Adjustment" option.

4. In the calibration adjustment interface, you can choose different calibration options, including 16:9, 4:3, automatic and manual.

5. After selecting the appropriate scale option, click OK, and the system will automatically adjust the size and scale of the projection screen to meet the current needs.

6. If you need to customize the scale, you can select the "Manual" option, adjust the scale value in the pop-up interface, and confirm to complete the scale adjustment.

Through the above steps, the proportion adjustment of Mijia projector can be easily completed, so as to obtain a clearer and more realistic projection picture. It should be noted that when selecting the scale, the appropriate scale options should be selected according to the actual needs, so as not to affect the viewing effect. At the same time, for different application scenarios, it is also necessary to choose the corresponding proportion to obtain the best visual effect.