What should I do if my mobile phone card cannot be used?

Consult others around you if there is such a problem, if the same problem exists, it is a fault in the local network;

Change the mobile phone for testing, if it can be used normally, it may be that there is a problem with the mobile phone, you can contact the mobile phone after-sales consultation;

If there is still no service after changing the phone, it may be a problem with the SIM card, and you can bring the card to a nearby business hall for testing.

1. Let's talk about the simplest reason first, check whether the SIM card is reversed, if it is reversed, the mobile phone will definitely not be able to read the SIM card, then we need to reinsert the SIM card in the correct way.

2. Check to verify whether the SIM card is broken. Change to a normal mobile phone, put the SIM card on another mobile phone that can be normal, and see if the SIM card can be recognized, if the normal mobile phone cannot recognize the SIM card, then the SIM card is broken.

3. Verify whether the phone is broken. Go and get a SIM card that can be used normally in someone else's mobile phone, and put it on the mobile phone that does not recognize the SIM card, if the normal SIM card cannot be recognized, then it means that some parts of the mobile phone are broken.

4. Check whether the SIM card slot of the mobile phone is loose. First, gently press down on the metal fixed shrapnel on the SIM card, and after loading the SIM card, gently press it again, or move the SIM card back and forth.

5. Check if the SIM card slot of the mobile phone is broken. The SIM slot is broken, so it can only be sent for repair, and then the cause can be further determined.

6. Whether the SIM card is oxidized. SIM is also partially metal, if the mobile phone is in water or the SIM is soaked in water, then it may cause the SIM card to oxidize, so you need to pull out the SIM card, and then blow it slightly with a hair dryer, and then use a paper towel or towel to wipe off the gray oxide on the SIM card.

7. For some Android flashing enthusiasts, often in order to try some new ROM new features, new styles or new functions, and often flash, sometimes some flashing packages after brushing, can not recognize the SIM card, for this situation, there are two ways to deal with it:

1) Re-flash back the flashing package that can identify the SIM before.

2) Feedback this problem to the author who made the ROM, and ask the ROM author to help solve the problem that the SIM card cannot be recognized.

You can take the name and ID card registered on the number to the business hall to replace the card.

You can go to the mobile business hall to handle it.

The mobile business hall can give you a new card.

Hello, the mobile phone card needs to be canceled when it is not in use.

Unused SIM cards will be automatically cancelled 90 days after the shutdown. However, within 90 days after the arrears, the ** fee and other business expenses have not stopped, and will accumulate for 90 days. Although the mobile phone card was passively cancelled in the end, the arrears still existed, and the ID card used for arrears would be blacklisted by the mobile operator.

If you need to apply for mobile services in the future, you need to make up the arrears.

China Mobile's customer service staff said that if the arrears exceed 80 yuan, they will not be able to reissue mobile numbers in the future.

Extended Materials. China Mobile's account closure process.

1. Customer information requirements.

The user shall submit valid identity information (identity document) for business processing.

II. Acceptance Requirements.

When accepting the account cancellation, the owner must bring the owner's valid identity document to the business hall for processing.

3. Rules for handling account closure.

1. There is no arrears in the unified account, and if there is arrears, the arrears must be settled first;

2. Have participated in the contract plan, and cannot handle the account cancellation business during the agreement period;

3. For users whose pre-stored phone charges are zero and have been shut down for three consecutive months, the users will be cancelled from the fourth month;

4. Settle the relevant expenses in the original owner's account in accordance with the financial regulations.

You need to go to the business hall to cancel the account.

It should be in arrears.

If there is no arrears, please follow the steps below to resolve the issue:

First: whether the SIM card is inserted correctly.

Second: whether the wrong SIM card is inserted, such as the standard version inserted into the telecom SIM card, etc.

Third: Go to the hardware detection to see if the SIM card is working properly (enter * * in the dialing interface). If the SIM status is normal, go to step 5, or if the status is unknown, go to step 4.

Fourth: Try to replace a different SIM card, if the status is still unknown during hardware detection, it is recommended to go to the maintenance 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).

Fifth, whether the network type is correct and whether the operator selects whether it is automatic. (China Unicom selects 3G priority, China Mobile selects only 2G, and China Telecom selects automatic).

Sixth: 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.

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

Eighth: Back up your data.

Wire brush to the latest system version and try again.

If the mobile phone card is suddenly unusable, check it as follows:

1. Whether the mobile phone is in arrears.

2. Whether there is a signal to move.

3. If you can't receive the signal, it may be that the card is loose, or the tentacles collapse and oxidation conductivity is poor, you can take out the card, insert the gold finger with an eraser, and then insert it into the mobile phone.

4. If there is still no signal, you can insert the card into other mobile phones for testing. If it's OK, it's a problem with the phone and needs to be sent for repair.

5. There is also a problem with the detection of other Jan mobile phones, that is, the card is broken, and you have to move to change the card.

1. Consult others around you if there is this problem, if there is the same problem, it may be that the local network is faulty, you can call the local 10086 feedback optimization;

2. Change the mobile phone for testing, if it can be used normally, it may be a problem with the mobile phone, you can contact the mobile phone after-sales consultation;

3. If there is still this situation after changing the mobile phone, it may be a problem with the SIM card, and you can bring the card to the nearby business hall for testing.

First rule out that you won't use.

Generally, the phone is malfunctioning.

You can take your own card off and try it by borrowing someone else's. If someone else can play the ** card, to your mobile phone, it means that there is a problem with the card, and it can't be played, which means that it is a mobile phone problem.

Look for a mobile phone store or mobile sales office.

Thank you for your question.

Mine is the same, tell me if your solution is not solved.

Summary. 1. The SIM card of the mobile phone is in poor contact with the shneme of the mobile phone card slot, resulting in the failure of the SIM card circuit and the inability of the mobile phone to communicate with the network base station. 2. The mobile phone is incompatible with the system due to the application software for installation, which causes the system software to close the mobile phone signal processing circuit.

1. The SIM card of the mobile phone is in poor contact with the shneme of the mobile phone card slot, resulting in the failure of the SIM card circuit and the inability of the mobile phone to communicate with the network base station. 2. The mobile phone is incompatible with the system due to the application software for installation, which causes the system software to close the mobile phone signal processing circuit.

Fellow, I really didn't understand, I can be more specific.

If your phone is not available in a specific area, or if a nearby friend's phone with the same carrier** card is also not serviced, it may be caused by poor network quality in your location, and it can be restored to normal after changing to another location. (2) Please try to reset the APN, and the incorrect APN settings will affect the normal use of the network. Method 1: a

Summary. Hello, dear! When we use the mobile phone card provided by the operator, we occasionally encounter some situations that cannot be used normally, and we can solve the problem through troubleshooting!

First of all, check to confirm whether it is caused by the problem of the mobile phone or the problem of the mobile card, if it is a problem with the mobile card, you can try to call 10086 customer service to consult the specific reason for the normal use. At the same time, you should also check whether there is enough balance in the mobile card and there is no downtime. Or maybe you have handled some other business and can't use it normally!

Hello, dear! When we use the mobile phone card provided by the operator, we occasionally encounter some cases where the banquet infiltration cannot be used normally, and the problem can be solved through the troubleshooting method! If it is a problem with the mobile card, you can try to call 10086 customer service to consult the specific reason for the normal use.

At the same time, you should also check whether there is enough balance in the mobile card and there is no downtime. Or maybe you have handled some other business and can't use it normally! Also, you can check if the signal coverage of the mobile card in your environment is playing well!

You've done a great job! Can you elaborate on that?

Generally speaking, the above reasons can be investigated, if it is not resolved, you can try to call 10086 mobile customer service to find out the specific problem.