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How to recover the three buttons at the bottom of Huawei mobile phone?

The steps and methods are as follows:

Preparation tool: Huawei mate20.

System version: Android 7.0.

1. Take Huawei mate20 as an example. First, click Settings on the mobile phone, as shown in the figure below:

2, and then select the system function, as shown in the figure below:

3. After entering the system interface, click the system navigation mode, as shown in the figure below:

4. After entering, select the three-button navigation on the screen and click More Settings, as shown in the figure below:

5. After entering, you can set whether the Enter key is on the left or right, and whether the navigation is three or four keys, as shown in the following figure:

6. Set the Enter key on the right here and set it as needed, as shown in the figure below: