What does it mean that the service center has no address when Apple 5s sets the SMS center number?

It's just that your SMS settings are wrong.

How to set SMS center number for iPhone5s;

In the "Dialing Keyboard" interface, enter "*5005*7672* SMS Center Number #", and then click "Call" to complete the setting of SMS Center Number. ?

Note: When entering the number of SMS center (for example, Beijing Unicom:+86130112500), the input method of+"person" is to press and hold the 0 key (00 can also be used instead). ?

How to check the number of SMS center in iPhone5s;

Click "Phone" on the home screen, select "Dial Keyboard", then enter "*#5005*7672#" and click "Call" to see the SMS center number set by iPhone4.

What if iphone5s can't send SMS?

1. Turn on the settings of the mobile phone, and then turn on the switch for sending and receiving SMS again.

2. Enter a restore point to restore the network settings.

3. Enter the network and start data roaming;

4. Turn on the dialing of the mobile phone and enter * 5005 * 7672 *+8613800ABC 500 # in the dialing interface. . Abc is the local area code (for example, Shenzhen is 755). . Press the dial key again,+is long press the 0 key.