The mobile phone can't receive the short message, but it will be received after it is turned off and restarted. What happened?

1, network providers (such as China Mobile, China Unicom and China Telecom) have problems, the signal strength is not enough, or the signal is weak.

2. There is something wrong with the SMS settings.

3. Network delay. For example, during special periods such as Spring Festival and New Year's Eve, there are many people who send messages and make phone calls, which leads to the data transmission congestion of network service providers.

4. The problem of the mobile phone itself.

Second, the solution:

1. Determine whether it is the problem of your own mobile phone terminal through the switch test;

2. If the mobile phone receives normally, you can back up important files and address books on the mobile phone and restore factory settings or initialization;

3. You can contact the sender to change the phone and confirm whether there is a problem with the other party's mobile phone terminal. If there is something wrong with the other party's mobile phone, please ask the other party to check the mobile phone terminal or restore the factory settings and initialization operations. If the other party can't operate, please ask the other party to change the machine to the merchant for testing and consulting.

4. After the above operations, you still haven't recovered or don't have the conditions to change the machine. Go to the business hall to change the machine or consult the mobile phone after-sales treatment.

Extended data:

Common troubleshooting of mobile phones:

Fault phenomenon: the mobile phone card has no signal in some areas.

First, the reason for the failure:

1, network problem or network coverage problem.

When the network coverage is not good, it is generally located in mountainous areas, basements, elevators and when there is shielding or signal interference, there will be no signal or weak phenomenon. In the process of debugging, optimization and maintenance, the network may also cause signal instability. When the network returns to normal, the cell phone signal will return to normal.

2, the phone itself.

There may be something wrong with the receiver of the mobile phone. Need to go to the maintenance point. Of course, it does not rule out that the SIM card is damaged.

Second, the solution

1. Check whether the mobile phone card slot or sim card is damaged: you can try to insert another mobile phone card, and then put the sim card of the mobile phone itself on another mobile phone to see if there is a signal. If the card slot is damaged, it is recommended to replace the card slot. If the sim card is damaged, please replace it in the business hall.

2. There is no signal on the mobile phone due to network delay: you can turn on the flight mode of the mobile phone, turn it off after five seconds, or restart the mobile phone.

3, where the signal is not good, you can search elsewhere if you can't find the signal.

4. The handset is damaged: If there is still no signal after the above reasons are eliminated, and it is suspected that the handset is broken, please go to the after-sales location of the handset for inspection and maintenance.