Why can't the mobile phone send short messages! Can't receive SMS and 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, and the common formats are pictures: jpg, gif and 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.

If your mobile phone can't send short messages, you can try to restart or change your mobile phone for testing to see if the following conditions exist:

1. The SMS center number is set incorrectly, please re-enter the correct SMS center number;

2. No signal or low battery;

3. Because the system is busy during the holiday short message sending peak period, it is suggested that you try again later or avoid the sending peak period;

4. The sending format is incorrect. If you send a short message to PHS users, you need to add the area code before the number;

5. The short message sending time exceeds 24 hours;

6. The mobile phone shields the short message sending function;

7. Blacklisted by SMS;

8. Insufficient quantity balance;

9. SMS inbox and outbox are full.

If the above reasons cannot be solved, you can contact the local manual customer service or go to the business hall to confirm whether the SMS function is enabled and hand it over to the staff.