How to send MMS on oppo mobile phone?

The mobile phone sends the multimedia message "This service is not enabled on the network". I suggest you:

1, open the data network when sending MMS;

2. If conditions permit, it is recommended to replace the SIM card. If it is normal, the SIM card may be faulty;

3. You will still be prompted after replacing other SIM cards. Please back up your phone information (phone number, SMS, etc.). ) and restore the factory settings.

Unable to solve it, please back up your mobile phone data and take your mobile phone, purchase invoice and warranty card to the nearest OPPO customer service center for testing.