Wechat can't find the video number because the portal is closed. You can restore it by opening the portal in Discovery Page Management. Android, like iOS, needs six steps to achieve. The following are the steps for Huawei's mobile phone to open the WeChat video number entrance:

In the personal interface of WeChat, find the "Settings" option and click Enter.

In the setting interface, find the "General" option and click Enter.

In the general interface, find the "Discovery Page Management" option and click it.

In the new interface, find the video number option and open the slider on its right.

After opening the video number, return to the main interface and click the "Discover" button below.

In the discovery interface, you can find the video number and click Enter.