Why can't Apple's mobile phone receive WeChat message prompts in standby mode?

Can not be set, the setting method is:

1. Open the home screen of the mobile phone, find the settings and open it.

2. Then go down to the bottom of the setup menu and select the corresponding software.

3. Continue to open it and find the notice inside.

4. Open the notification item and choose according to your personal situation, whether to lock the screen and display it in the notification bar, etc. Open it.