Why does the telecom card I use suddenly disappear from time to time and then it comes out again???

Based on your description, it is recommended that you follow the steps below to check:

1) Replace the test to determine whether your own mobile phone quality problems, mobile phone quality problems, please consult after-sales testing and processing.

2) Replace the card test to determine whether it is a UIM card problem, other people's cards are normal on their own mobile phones, and their own UIM cards are frequently dropped on their mobile phones or other mobile phones, please go to the business hall to detect and replace the card.

3) The mobile phone only goes online in a certain area, the network speed is slow or frequently drops, or the mobile phone of other people around the Internet is also this phenomenon, please dial 10000.

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Summary. Hello, I'm glad to answer for you, dear, the telecom card has no signal for no reason for the following reasons, which is the specific reason for the lack of signal should be troubled according to the following reasons. 1. The network of the surrounding environment is poor, which will cause the signal to be in a non-service state, and the signal will be in a non-service state due to the poor network of the surrounding environment.

2. Some reasons of the system itself, resulting in the mobile phone can not connect to the network, due to the system itself, resulting in the mobile phone can not connect to the network, by restoring the network settings, restore to the default factory settings to solve the problem of no service, or by restarting the mobile phone. 3. The problem of the SIM card of the mobile phone is that the mobile phone cannot be connected to the network. If there is a problem with the SIM card of the mobile phone, take out the SIM card and check whether it is damaged or worn; There are some vulnerabilities in the iOS system of the Apple mobile phoneThere are some vulnerabilities in the iOS system of the iPhone, which will cause the mobile phone to be unable to search the network and display no service status, so update the system of your mobile phone to the latest version.

Hello, I'm glad to answer for you, dear, the telecom card has no signal for no reason for the following reasons, which is the specific reason for the lack of signal should be troubled according to the following reasons. 1. The network of the surrounding environment is poor, which will cause the signal to be in a non-service state, and the signal will be in a non-service state due to the poor network of the surrounding environment. 2. Some reasons of the system itself, resulting in the mobile phone can not connect to the network, due to the system itself, resulting in the mobile phone can not connect to the network, by restoring the network settings, restore to the default factory settings of Yingjing to solve the problem of no service, or by restarting the mobile phone.

3. The problem of the SIM card of the mobile phone is that the mobile phone cannot be connected to the network. If there is a problem with the SIM card of the mobile phone, take out the SIM card and check whether it is damaged or worn; There are some vulnerabilities in the iOS system of the Apple mobile phoneThere are some vulnerabilities in the iOS system of the Apple mobile phone, which will cause the mobile phone to be unable to search the network and display no service, so update the system of your mobile phone to the latest version of the book.

4. Suddenly, there is no signal on the mobile phone"No service"Status, first confirm whether you have inserted the correct SIM card, re-insert and unplug to try, enter a special number in the dialing interface to enter the hardware detection mode, if the status is abnormal, try to replace a SIM card, You Zao A: If you confirm that there is no problem with the SIM card and related settings, you can only restore the mobile phone to factory settings to try or ask professional maintenance personnel to check and replace. 5. It may be that there are problems with the signal transmission tower due to problems such as thunderstorms and typhoons, and this situation can only be connected to the network after the operator can repair it. 6. It may be that the system program of the mobile phone is faulty, and you can turn off the mobile phone and restart it again to let the mobile phone automatically connect to the network.

Summary. Using a telecom card for no reason and no signal can be due to the following reasons:

Using a telecom card for no reason and no signal can be due to the following reasons:

There is no signal or the signal is relatively poor, mainly because the signal will be affected by various factors such as terrain, landform, and high-rise buildings in the process of propagation. 1. If the mobile phone is in arrears and is stopped in a different place (not the place where the number belongs), there will be no service, it is recommended to check the mobile phone bill in time, and pay in time to resume the phone; 2. If the mobile phone is in poor contact with the SIM card, you can turn off the mobile phone and take out the SIM card, reinsert the SIM card and boot it for testing; 3. If the mobile phone or SIM card is damaged, you can try to change the card or change the mobile phone for testing, if it is a SIM card problem, please handle the replacement and replacement card business in time; 4. For local network problems, you can call the local Unicom manual customer service for specific consultation.

The handling method is as follows: 1. Turn the phone on and off again and try again; 2. Swap the SIM card to a family member's or friend's mobile phone and try again; 3. See if there is a signal from other telecom users around. Tips:

When your phone shows no service, it is recommended to take the following methods to try to solve it:

1.Please avoid the use of magnetic suction Metal protective shell, magnetic bracket or magnetic chuck, metal and magnetic materials are easy to interfere with the signal, and the posture training will cause no service for the mobile phone.

2.Please try to replace other mobile phone cards, it is recommended that you install other mobile phone cards into your mobile phone to view, if its chain is correct and the signal of his mobile phone card is normal, it may be that there is a problem with your mobile phone card, it is recommended that you go to the operator's business hall to replace a new mobile phone card. Bend-Chang.

3.Please move to your current location and try (1) In some closed indoor environments, such as buildings with dense spacing between buildings, the mobile phone signal may be blocked, resulting in no service. You can go outside to see if your mobile phone signal is back to normal.

2) The degree of network coverage of operators varies according to different regions, and urban areas basically meet the coverage, but some remote areas may have insufficient coverage capacity, which will lead to no service for mobile phones. You can determine whether it is caused by poor network coverage in the current area by whether the mobile phone has no service when it is only in the same area, or whether the mobile phone with the same operator** card is also not serviced in the vicinity.

If the above troubleshooting does not solve your problem, it is recommended that you bring your ID card to the nearest telecom customer service center for testing.