How about Huawei Glory play 30plus flash?

1. First, let Huawei play the app store on the 30plus mobile phone.

2. Search for "surface flash" after opening the store.

3. Then click Install.

4. Then find and open "Surface Flash" on the desktop.

5. Click the switch under "Notification Blinking".

6. Next, set permissions. Click "Go to Settings" first.

7. Then turn on the switch behind the "surface flash".

8. Select "Allow".

9, and then click the second "reset".

10, and then turn on the back switch.

1 1. After setting two permissions, click Next.

12. Finally, you can set it by putting a tick on the switch behind WeChat.