1. First, open the phone, enter the "General" interface of the phone, drop down to find the "Restore" option in the interface, and click.
2. Click the "Restore" option, find the "Restore Network Settings" option in the interface, and click.
3. Click "Restore Network Settings" and enter the password for verification, which can solve the problem that WeChat marks the other party's information with a red exclamation mark due to poor network.