Why can't this machine send text messages?

If your mobile phone can't send short messages, you can try to restart or change your mobile phone to test whether there are any of the following situations:

1. SMS center number is not set correctly. Please re-enter the correct SMS center number.

2. If there is no signal or the battery of the mobile phone is low, move to an open area or try again after it is fully charged;

3. The system is busy during the peak period of holiday SMS sending. It is suggested that you try again later or avoid the peak period of sending.

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. The quantity balance is insufficient. Recharge the phone bill and try again.

9.SMS inbox and outbox are full. Delete unnecessary messages and try again.

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.