SI vous ne recevez pas les MMS et il vous est impossible de vous connecter à Internet, c’est que vous avez peut-être les points d’accès réseau (APN) mal configurés.
If you don’t receive MMS and can’t connect to the Internet, then you probably have a configuration issue with your Access Point Network (APN).
To verify if your APN are correctly configured, go to Android settings -> Network and internet -> Internet -> click on gearwheel next to your internet provider name -> Access pount names. A list of access points will appear. Visit your provider’s website and search for the right APN configurations. Compare them with the ones from your phone and modify them if necessary.