How to clean the mobile phone?

It can't be cleaned thoroughly, but it can be cleaned deeply. Take Huawei mate20 mobile phone as an example:

1. First find the settings of the mobile phone and click Enter.

2. Slide down to find Application Management, and then click Enter.

3. First, select the software that you usually think is not very important and click to enter. Wechat, QQ and so on. It should be handled with caution, because once a lot of information is cleaned up, it can't be found back.

4. Click Save and enter, as shown in the figure below.

5. Click Delete Data, as shown below.

6. At this time, I found that the storage space was much bigger at once. Note that the registered member's APP needs to log in again. Clean up the important records of WeChat class after saving.