Why can't Unicom ios74s send text messages?

There are three common reasons why Apple phones can't send text messages:

1, card cutting damaged the USIM card and affected some functions of the mobile phone card. This situation exists;

2. The network settings are wrong. Apple's mobile phone card has no APN option to change parameters, and can only restore network settings.

3. The number of SMS center is incorrect.

If the above possibilities are ruled out, it is the problem of the mobile phone system, and some mobile phone systems will have such anomalies when they fail.

Specific solutions to the three listed reasons can be shared by users who refer to Baidu's experience:/article/ac6a9a5ae6c70d2b643eac61.html.

Additional SMS center number setting:

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 SMS center number (for example, Beijing Unicom:+86130112500), the input method of "+"person is to press and hold the 0 key. ?

How to check the number of SMS center on iPhone4?

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. ?

If you still can't set it successfully according to the above methods, you can back up the data and restore the factory settings, and then insert the Unicom card.

What is the number of short message centers in China (Unicom) provinces and cities?

Beijing:? *5005*7672*+86 130 10 1 12500#?

Shanghai:? *5005*7672*+86 130 103 14500#?

Shenzhen:? *5005*7672*+86 130 10888500#?

Shandong: * 5005 * 7672 *+8613010/71500 #?

Liaoning: * 5005 * 7672 *+8613010240500 #?

Jiangsu: * 5005 * 7672 *+8613010341500 #?

Zhejiang: * 5005 * 7672 *+8613010360500 #?

Fujian: * 5005 * 7672 *+8613010380500 #?

Sichuan: * 5005 * 7672 *+8613010811500 #?

Chongqing: * 5005 * 7672 *+8613010831500 #

Hainan: * 5005 * 7672 *+8613010501500 #?

Heilongjiang: * 5005 * 7672 *+8613010980500 #?

Jilin: * 5005 * 7672 *+8613010911500 #?

Tianjin: * 5005 * 7672 *+8613010130500 #?

Hebei: * 5005 * 7672 *+8613010180500 #?

Inner Mongolia: * 5005 * 7672 *+8613010950500 #?

Shanxi: * 5005 * 7672 *+8613010701500 #?

Anhui: * 5005 * 7672 *+8613010305500 #?

New? Xinjiang: * 5005 * 7672 *+8613010969500 #?

Qinghai: * 5005 * 7672 *+8613010776500 #?

Gansu: * 5005 * 7672 *+8613010879500 #?

Ningxia: * 5005 * 7672 *+8613010796500 #?

Guizhou: * 5005 * 7672 *+8613010788500 #?

Yunnan: * 5005 * 7672 *+8613010868500 #?

Hunan: * 5005 * 7672 *+8613010731500 #?

Hubei: * 5005 * 7672 *+8613010710500 #?

Guangdong: * 5005 * 7672 *+8613010200500 #?

Guangxi: * 5005 * 7672 *+8613010591500 #?

Henan: * 5005 * 7672 *+8613010761500 #?

Jiangxi: * 5005 * 7672 *+8613010720500 #?