This issue will take you through this issue. This is a tutorial that many friends are looking for. Huawei mate40pro supports 90hz refresh rate, and can also adjust the refresh rate that needs to be used. So how to set the refresh rate of Huawei mate40pro? Let’s take a look together~

2. Click the screen refresh rate option.

3. Select the screen refresh rate mode you want to use.

This article takes Huawei mate40pro as an example and is applicable to Harmony OS3.0 system.
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