The reasons of high quality p0.9 led display flickering：
1. The driver loader is wrong.

2. The network cable between the computer and the screen is too long or the network cable is faulty.
3. The sending card of the p0.9 led display screen is broken, or the control card may be broken. Check whether the small light on the control card is on or not. If it is not on, it is broken.
5. Whether the connection line between the power supply and the control card of p0.9 led display is short-circuited.
6. The output voltage and current of the power supply are unstable, and the power supply with control card should not bring too many boards.

Corresponding solutions when the high quality p0.9 led display flashes：
If the whole screen of the p0.9 led display is blurry and the image is twisted, it is usually because the driver loader is wrong. Check the driver loader again, and it is impossible to uninstall and reinstall. Another possibility is that the sending card is broken, and the sending card needs to be replaced at this time.

If the p0.9 LED display is flickering irregularly, it is generally a system frequency problem. Replacing the system or adjusting the setting parameters can basically solve the problem.

If the p0.9 led display is flickering, it may be a problem with the graphics card driver, or it may be a problem with the resolution setting of the sending card. Another possibility is the power supply of the high quality p0.9 LED display problem (insufficient power supply, information clutter, electromagnetic interference), and more consideration should be given to the wire diameter of the power supply and signal traces, as well as the production process. The p0.9 led display module can also be improved by adding a few more capacitors.