Why can't Iphone4 Hong Kong send and receive MMS?

Unable to receive MMS service for the following reasons:

1. The mobile phone does not support the MMS function or the MMS parameters are set incorrectly;

2. This number cannot access the Internet;

3. The time when the mobile phone is turned off or not in the service area has exceeded the time limit for issuing mobile phone newspapers;

4. The content of MMS is too large or the format does not match: the size of each MMS is limited to 100K K. The common formats are pictures: jpg, gif, bmp, sounds: midi, mp3, wav, and texts: txt；;

5. Due to the influence of network and rush hour, there may be some time delay in receiving MMS, or information may be lost. If the delivery time is more than 2 hours and you haven't received the service, please contact the local manual customer service for details.

There are several reasons why the mobile phone can't send MMS:

1. The mobile phone does not support MMS function;

2. The parameter setting of mobile phone MMS is incorrect;

3. The size of the sent MMS exceeds 50K；;

4. The MMS outbox and inbox are full;

In addition to the above simple troubleshooting, you can turn off your phone or change your mobile phone to test it, but it still won't solve it. You can contact the manual customer service for processing.