Samsung P729 can't send short messages, and it takes a long time to receive them.

A, Samsung mobile phone can't send SMS processing method is as follows:

1. You can change your mobile phone to see if you can send and receive short messages.

2. If you can send and receive short messages, I suggest you plug the card back into your mobile phone and send yourself a short message to see if you can receive it.

3. If not, I suggest you check whether there is a problem with the sim card;

4. Check whether the number of the SMS center is set correctly;

5. Bring the mobile phone card to the local business hall for testing or replacement.

Second, the delay in sending and receiving short messages may be due to the following reasons:

1. The network system is busy. I suggest you try again next time.

2. Because of the mobile phone, you can restart the mobile phone or change the mobile phone test;

3. Long downtime or out of service area;

4.SMS inbox and outbox are full. Please clean them up and try again.

5. The mobile phone has been stopped, so it is recommended to pay for it and start it again.

The above reasons have not been solved after being eliminated. Please contact 100 10 for manual customer service.