Mobile phone can't receive text messages.

Users often ask that mobile phones can't receive short messages, or that short messages will be delayed. In fact, mobile phones can't receive information. Generally speaking, it has little to do with their own hardware, and most of them should be caused by software. We have answered these questions in time before, but most of them are scattered. So on March 15, we also summarized some corresponding reasons for your reference. If users encounter such problems again, they might as well check them step by step as a complete set of problems until they are solved. Reason 1: The number of SMS center is incorrect ★★★★★★★

Because some models involve customized versions, parallel imports and port differences, the SMS center numbers of these models are generally not from Chinese mainland, and licensed mobile phones will become factory settings after refreshing or restoring their factory settings, which may lead to mismatched SMS center numbers. Because there are different operators in different parts of the country, the number of SMS center in each area is different, which further causes the confusion of SMS center numbers. The user's own setting error may also lead to incorrect SMS center number, so the main reason why the mobile phone can't send and receive SMS normally is mostly related to the wrong setting of SMS center number.

Solution:

Because different parts of the country and different carrier networks, the corresponding SMS center numbers are different. If it is just a list, it will be a huge amount of data. In addition, for users, it is not only tedious to find the number of SMS center on the Internet, but also the version and year of many materials will cause inaccurate information. Here we suggest that you can go to the business hall of the local operator to find out. Generally, someone will help you find the most correct SMS center number and set it up. Because the numbers of SMS centers are different all over the country, here are only the numbers of several major cities.

Beijing Mobile +86 13800 100500? Beijing Unicom+8613010112500

Shanghai Mobile +86 138002 10500? Shanghai Unicom+8613010314500

Shenzhen Mobile +86 13800755500? Shenzhen Unicom +86 130 10888500

Tianjin Mobile +86 13800220500? Tianjin Unicom+8613010130500

Chongqing Mobile +86 13800230500? Chongqing Unicom+8613010831500

Note: 1, except for municipalities directly under the central government, the number of Unicom SMS centers is one in a province, and there is no difference at the municipal level.

2. The number of SMS center of CDMA model is built-in, and generally cannot be changed and set.

Reason 2: software conflict reason ★★★★★

This phenomenon is not difficult to understand. Generally speaking, we will advise you to install your own practical software in moderation. Because installing a large number of software will not only slow down the running speed of the fuselage, but also cause conflicts between software until there is a white screen crash or crash. Software such as security guards and attribution inquiry may change the number of SMS center accordingly, or some firewall software may block relevant information, thus causing the phenomenon that SMS cannot be received.

Solution:

This phenomenon requires you to find the software related to contacts in time, and it is best not to install too many software related to numbers, places of origin, calls, contacts and other information. Because this may cause conflicts between software, and some software firewalls or protection functions will filter out some sent information and calls accordingly. If you can't receive SMS because of software conflict, delete the software that caused the conflict in time. If you can't uninstall, you can choose to restore the factory settings when the backup is good.