Why doesn't Huawei Mite 40 take a snapshot of the information screen?

The information screen screenshot function of Huawei Mate40 series mobile phones, also known as "knuckle screenshot", is unavailable or cannot be found for the following reasons:

1. Setup problem: Please make sure that this feature is enabled on your mobile phone. You can find the relevant options in "Smart Assistant" or "Smart Assistant" in the setting menu of the mobile phone, and make sure that the "knuckle screenshot" function has been turned on.

2. Configuration problem: Some mobile phone models or system versions do not have this function. Please make sure that your mobile phone model is Huawei Mate40 series and is running a system version that supports this function.

3. Gesture setting: It is because you did not correctly perform the gesture operation that triggered this function. Generally speaking, you can take a screenshot by tapping the screen twice with your knuckles. You can try it several times or consult the user manual of your mobile phone to understand the correct gesture operation. Therefore, for the above reasons, you can't use or find the information screen snapshot function of Huawei Magic 40. The standard version of Mate40 is equipped with a 6.5-inch organic light-emitting diode display, equipped with Huawei's own Kirin 9000 processor, and supports 5G network and various photography functions.