What if one plus mobile phone can't send and receive MMS?

If you are using an OPPO/ One Plus mobile phone, you can refer to the following methods to deal with the situation that you can't send MMS:

1. Check whether the phone bill, recipient number and SMS center number are correct, whether the network is good and whether the SMS center number is correct.

2. You need to use the data network to send MMS (you also need to open the data network when connecting to Wi-Fi).

3. Check whether the recipient's number is correct. For example, numbers copied from other places may contain special characters such as commas, resulting in the actual number being split into multiple numbers; In addition, when the recipient's number is short, sending MMS is not supported (sending SMS is supported).

4. Switch the flight mode or restart the phone to search the network again to see if it can be restored.

5. Check whether the operator has handled the port number transfer service recently. After handling the number portability service, it will take some time for the SMS function to be activated and take effect. I suggest you consult the operator to confirm the specific effective time.

6. Compare and test the machine change and card change to confirm whether it is a mobile phone or a SIM card problem.

If the above operation is still not solved, please back up your mobile phone information (contacts, text messages, etc. Restore the factory settings or take the mobile phone, purchase the invoice and warranty card to the nearest local OPPO official service center for testing.