How to solve the invalid display card of Tianyi Telecom mobile phone card

Dear Telecom users, Hello!

According to your description, first try your UIM card on another telecom mobile phone, if it can't be used, it means that your UIM card is damaged, and you can go to the front desk of the local telecom business hall to replace the card in time; If the UIM card of another mobile phone can be used, put the UIM card back into your mobile phone and press it tightly, and then try it after turning it on.

If you have any other questions, please log on to the online business hall of Anhui Telecom

If you have any questions about using telecom products in the future, you can also ask China Telecom (Anhui) Enterprise Platform for help, and we will answer all your questions warmly. Platform**.

According to your description. The mobile phone card has been damaged, it is recommended to take the card to the business hall to check and replace the card.

I hope I have been helpful to you, and if you have any questions, please feel free to continue to consult us.

Mobile phone communication is to send and receive signals through the network base station, and then communicate with the called party, such as the mobile phone shows no service may be related to the following conditions:

1. Mobile phone SIM card.

Poor contact with the shrapnel of the mobile phone card slot, resulting in the SIM card circuit can not work, and the mobile phone and the network base station can not communicate, at this time, you can remove the SIM card and wipe the SIM card gold finger with a cleaning cotton cloth.

After that, Bituan reinstalled.

2. The application software for the installation of the mobile phone is not compatible with the system, resulting in the system software turning off the modem in the mobile phone signal processing circuit.

At this time, you can turn off the phone and restart it, the modem in the mobile phone signal circuit will restart, and when the signal is normal, delete the suspicious mobile phone application software installed before the problem.

3. The SIM card of the mobile phone is not registered in the network, at this time, you can insert this SIM card into another mobile phone, if it also shows no service as the reason for the SIM card.

4. If the SIM card of the mobile phone is accidental, and the network signal coverage area has no signal, it fails to reconnect to the search network and merge the book, at this time, you can manually search for network registration under the menu of Settings - General - Network - Network Operator.

5. If the signal coverage of the mobile phone SIM card network operator is not available, you can change the location of the bank to an open area, and then check the mobile phone signal grid display, if the display is normal after changing the location, you can call the network operator service ** for feedback and complaints.

6. **The card has been used for too long, and with a valid certificate, you can go to the local business hall to reapply for a card.

1.What should I do if the mobile phone inserts a telecom card and shows that there is no service?

According to the information you provide, if you mean that the mobile phone cannot be used "without service", you can detect it in the following ways:

1.Please make sure your phone is not set to airplane mode;

2.Please confirm whether your mobile phone is in arrears;

3.You can go to a place with a better signal and turn it back on;

4.You can change the card on the mobile phone to try, or put the card on another mobile phone to try, if it can be used normally, it is recommended that you go to the business hall to test, if it still does not work, it may be caused by the mobile phone system, you can go to the mobile phone repair point to test the mobile phone.

2.Why does telecom phone show no service

It is recommended that you troubleshoot the problem by following the following methods:

Whether the SIM card is inserted correctly.

Whether the wrong SIM card is inserted, such as the standard version inserts the telecom SIM card, etc.

Go to Hardware Detection to see if the SIM card is working properly (enter * * on the dial screen). If the SIM status is normal, go to step 5, or if the status is unknown, go to step 4.

Try to replace a different SIM card, if the status is still unknown during hardware testing, it is recommended to go to the repair point for testing; If the detection status is normal, it is recommended to go to the carrier to replace a SIM card (the SIM card may be aging).

Whether the network type is correct and whether the carrier selects Automatic. (China Unicom selects 3G priority, mobile selects only 2G, and China Telecom selects automatic).

If the network type of the non-telecom mobile phone is CDMA automatic, you need to change the network type to "WCDMA Preferred" in the mobile phone information (**) to solve the problem.

Whether there is no signal in the area. You need to check whether other mobile phones on the same network have signals.

Back up your data, flash to the latest system version and try again.

If the above methods still do not help you solve the problem, please go to your nearest repair center for repair and inspection.

3.The telecom card I just bought is useless in the telecom mobile phone, and it shows that there is no service, what should I do, God save me.

The direction of the end of the card is reversed, see the attached drawing, pay attention to the direction of the missing corner.

2.Whether the mobile phone supports dual SIM blind insertion, if not, it should be inserted into SIM card slot 1. In addition, the size of the SD card slot is different, so it will not be inserted incorrectly.

3.In the above situation, you can find the salesperson who bought the card to help check, if there is no problem, there is a problem with the card, directly in the card purchase place (business hall) to re-replace the card, the first card is not charged, and the second card is charged 20 yuan (the situation is different in different places).

1. It may be that the mobile phone card is in arrears;

2. Degaussing of mobile phone card; (Replaceable mobile phone for checking).

3. Caused by loose mobile phone card slots. (Replaceable mobile phone for checking).

4. The current network signal is not good; (If the signal of your friends is not affected, it means that it is not the current network signal problem).

5. Hand search for the problem of setting up the world's respect for the foundation. (For example: airplane mode or turn off the card.)

Handling 5G is one step faster, the traffic is half cheaper than 4G, the broadband speed is 500M, and you can log in to the online business hall of Guangxi Telecom to handle broadband, number cards, traffic packages, etc. with one click, which is convenient and fast. Customer service number 156 will answer for you.