The phone does not recognize the new SIM card. Broken SIM card or tray

Surely everyone has encountered a situation where the SIM card in their phone stopped working. Here is a simple algorithm of actions describing what to do if the phone stops seeing the SIM card.

First, a few general words to gain respect for the SIM card. Many people perceive it as a piece of plastic or iron, which can sometimes even “demagnetize”. In fact, hidden under the plastic is a chip that contains the processor, RAM, permanent memory, communication lines, etc.. The operating system runs on all of this, there are files and programs that this operating system and processor processes. And this is not a phone device, but just a small piece of plastic that is inserted into it. The phone communicates with the SIM using a special protocol and communication channel. Modern SIMs support contactless payments. This is about the same as home computer or a smartphone, but of low power, without a keyboard and mouse monitor. Now imagine that in the event of a breakdown, you say that my computer (tablet or phone) has become demagnetized. Agree, it sounds strange.
Before performing the steps, you need to make sure that the phone should, in principle, see the map. For example, I've seen it before. Make sure that a card from another operator is not inserted into the device locked to a specific operator. Trouble may arise if a SIM card adapter was used or the card was cut. The card may move slightly or may not be pressed properly. In this case, the contact of the leg may disappear or, worse, bridge with another. It is better to immediately exclude this option and insert a card of a known correct size.

Step-by-step instructions on what to do if your phone does not see the SIM card:

1. Carefully remove the card and, without touching the contacts with your hands, rub them and the phone contacts with an eraser. Oil from the fingers is detrimental to contact. You can also wipe with alcohol with light force. The good thing about an eraser is that it mechanically, by friction, removes the formed film. Then you should remove (NOT WITH YOUR HANDS) the grains of the eraser if they remain and place the card in the phone. To be on the safe side, you can wipe the eraser down with high-quality alcohol.

2. Insert another, known working SIM card into your phone. If the phone works fine with other SIM cards, you need to contact your mobile operator to replace the card.
The card may fail due to mechanical failure, internal breakdown, automatic internal blocking caused by exceeding the switching limit (switching between networks). This blocking was done to prevent cloning of the card. When cloning, options are selected and the card is turned on multiple times. It is precisely such failures that people usually call “demagnetization” of the sim.

3. Try inserting the card into another phone. If it doesn’t work there either, change it at a mobile phone store.

4. If the SIM card is working, but the phone does not see it, it says “insert SIM card” or “no SIM card”, you need Check the SIM receiver contacts if they are visible. The contacts must not be bent or pressed in. For the card to work, each contact must have a good seal. You can try to carefully straighten bent contacts with a needle.

5. If the contacts are not visible, for example, the SIM card is inserted from the side or you are not sure that they fit tightly, you can try to press the sim harder by placing an additional small piece of thick paper or cardboard on top.

6. last hope solve the problem yourself - full reset phone to factory settings. At the same time, you need to make sure that all information and contacts are saved somewhere outside the phone and they can be restored. It’s better to find out how it’s done for your model “ hard reset" It is usually caused by holding down certain keys when turning it on. If you have the skills to figure it out, update the phone’s firmware with a newer, current, or stable version.

7. Contact the service center. After the above steps, there are still reasons why the phone may not work with a SIM card. For example, mechanical damage card holder or board in a place that is not visible without disassembling the phone. Failure of elements on the board that ensure the operation of the sim. Failure of the telephone radio module. Detection of such breakdowns is carried out at a specially equipped workplace.

Good luck to you and your SIM visibility to your phones.

Sometimes users of smartphones based on the Android OS are faced with the fact that their device stops “seeing” the SIM card or “keeps” it in airplane mode, not allowing making calls. This problem is rare, but if you learn how to fix it, then it will not be scary for you. And now you will find out how to do this.

Hardware faults

Incompatibility of SIM card and phone

For example, you bought a super modern flagship smartphone and inserted a SIM card into it, which you have been using for a very long time. There is a high probability that the device simply will not be able to read such a SIM card. In this case, just go to the nearest office of your operator and change SIM card to a new one (the number will remain the same).

Problem with slot and SIM card contacts

If you accidentally wet your smartphone or it was left in a dusty room for a long time, then perhaps the contacts of the SIM slot and the SIM card itself are simply dirty or oxidized. To fix this, just soak a cotton swab in alcohol and wipe the contacts here and there.

Conclusion

If you still have any questions like “Why doesn’t the Android device see the SIM card,” then write to us in the comments below, and we will definitely help you!

The phone does not see the SIM card? This is one of the most common problems that everyone faces. This misfortune always happens unexpectedly, and, despite its apparent obviousness, there can be many reasons - as well as solutions.

It happens that the phone simply refuses to see the card. Sometimes the SIM gets stuck in roaming mode, making it impossible to make calls. Let's figure it out, it's the phone itself or the card. If this is the first option, then you will be able to avoid running to the operator’s salon. You can decide for yourself by poking around system menus and trying to understand all the intricacies of Android.

System or software problems

Often it all starts after reinstallation operating system. If you have any doubts, it is better to reinstall the OS and return to factory settings.

Failures of Android updates and installations lead to serious problems. Often the user has to take the device for repair.

Enabling the SIM card

Don’t rush to blame your smartphone for all your troubles. Much more often the cause of the malfunction is obvious - something is wrong with the SIM card. SIM may refuse to activate for various reasons:

Dirty contacts. The first thing to do, if there are no signs of physical damage, is to carefully wipe the contacts with alcohol.
The holder is broken. If you have a new device, you're in luck: you can inspect the SIM card holder yourself. But almost everything modern gadgets They are deprived of this opportunity - if all methods fail, they will have to be sent in for repairs.
The card is “missing” because the phone is “locked”, that is, modified to work with a single operator company. You can “get into” such phones if you buy them second-hand or cheaply from abroad, where the practice of limiting the choice of telecom operators is the norm.

Problems with NVRAM

If you are lucky enough to own a device with an MTK processor, you risk catching a typical NVRAM error. NVRAM stores IMEI - international mobile equipment identifier, a unique device number. If there was something wrong with the NVRAM, then the IMEI also cried.

For diagnostics, open the dialer application and dial “*06#”. If the IMEI is not displayed, it becomes clear that it is the NVRAM that is acting up.

The message “NVRAM WARNING: Err = 0x10” when connecting to the Internet also indicates this malfunction. It is possible to solve NVRAM failure using your own means.

Problems with SIM after update

Updates are a frustrating process. Due to hesitation, both minor glitches and complete inoperability of the device can occur. If the problem started because of the OS, try reinstalling it/returning to factory settings. You insert it, but it still doesn’t work? You'll have to turn to specialists.

Phone problems

It’s hard to say what’s worse – when difficulties arise with the phone or with the card itself. Depends on how you prefer to solve the difficulties that arise. What can happen to a mobile phone:

the holder is acting up;
it is locked;
NVRAM problems;
dirty contacts;
Water has entered the slot/physical damage has occurred.

As a rule, a technician can fix problems with the phone itself. It’s better not to figure it out yourself.

Incompatibility of SIM card and phone

Cell phone doesn't accept SIM card? It may be locked, which is why all SIM cards of a “foreign” operator are not accepted. Perhaps the phone slot is unfamiliar with the card format. There are these types of cards:

Mini-SIM;
Micro-SIM;
Nano-SIM.

Often a brand new phone refuses to understand the old-fashioned card, and it has to be either replaced or cut off. Check the documentation to see which card is compatible with your device.

Problem with slot and SIM card contacts

Very often everything is solved very simply. If the card has been in use for a long time, its contacts may have become dirty. Wipe with alcohol and try again.

If the reason is related to the smartphone, then it is more difficult to figure out. Modern phones very monolithic, without free access to the card slot, as it was before. To check the contacts, you will have to disassemble the mobile phone, which is fraught with even greater complications. It is better to carry out diagnostics at a repair center.

Incorrect firmware: consequences and troubleshooting

If there is a problem with the software, pay attention to the firmware. You may have tried to install custom firmware on their own, which is why something went wrong during the update.

The phone does not see the SIM card of operators such as:

Megaphone;
Beeline;
Tele 2;
Yota.

No matter what carrier you have, the solutions are the same. Let's highlight the main reasons if the card refuses to be detected:

The expiration date has expired

Often a Sim simply dies of old age. It happens that there are no external signs of “age”, and the card simply crumbles. To get a new one you will have to go to the operator’s salon. If you are in Russia, don't forget to take your passport.

The operator has blocked the card

If you leave the card for a long time, it will be blocked by the operator. Contact him and ask what to do for resuscitation.

Water/physical damage

If water gets on the card, it will be ruined. If you constantly pull SIM cards out of phones, wear may occur and you will have to replace them.

Failed trimming

Bought new smartphone, not supporting old SIM card? We'll have to reduce it. But this is a delicate process, and if you mess up, you can lose your card. Operators offer circumcision services, but they cost money. If the SIM was damaged, you will have to request a new one.

Phone contacts are damaged

If the SIM slot is damaged, seek help from a repairman.

Locked phone

Did you buy an ultra-cheap phone from abroad, but it doesn’t see the network? It was probably programmed specifically for one operator. You can often get hold of such a device by buying it second-hand. In Russia, getting access to such smartphones is not easy, but it is still possible. Can be unlocked; The process is risky - it is better to trust the masters.

Why doesn't the second SIM card work in my phone?

Smartphones with dual SIM support have ceased to seem rare and have become the norm. Does one card work but the other doesn't? That's okay: sometimes the solution is simple.

Why the second SIM card may not work:

It is not activated. Some mobile models offer to disable card slots. Find in the settings “Manage SIM cards and enable the desired slot”
Map in “flight mode”. Try to do something from the card - send a message. This can activate it.
Your card is blocked. Contact the operator and he will tell you
Because of the two radio modules, the IMEI goes off. You can fix it by flashing it - a service center will help.

iPhone users often turn to technicians because the phone does not accept or does not see the SIM card. For devices of this popular brand this problem is very common. Perhaps, in pursuit of introducing the next innovation, developers systematically ignore what they consider to be minor shortcomings. In any case, users have to independently find ways to solve this problem. What to do? How to fix the problem yourself? Who should I turn to for professional help?

The reason that your iPhone does not see the SIM card can be anything, from system glitches to a burnt-out module on motherboard. But there is a list of the most common reasons, let's look at each of them in detail.

Drops, shocks, moisture

When a phone falls, even though there are no external chips or cracks, it is likely that there is internal damage. Sometimes the problem is localized in the SIM card slot. It can “move away” and the contacts will not touch the metal part of the SIM card. You can try to pull out the slot (you will need a special key or use a paper clip), and then push it back into the groove. Sometimes rebooting the device helps. If the problem cannot be solved, you will have to contact an experienced repairman. mobile technology. If the cause is the device getting into a humid environment, then you will not be able to do it without a qualified technician.

Old SIM card

SIM cards, like any device, do not last forever. They can simply exhaust their resource and not contact the device. To make sure that the iPhone does not see the SIM card for this very banal reason, ask a colleague or friend to insert a work SIM card into your smartphone. If the network appears, you will have to contact your cellular provider to exchange the damaged SIM card. Often the iPhone does not read Sim if it is often reinstalled on different devices or simply removed frequently. This causes the contact tracks to deteriorate and, over time, to appear on them. deep scratches, placing good contact with board.

Firmware glitch

Independently establish what exactly the firmware or system errors influence what smart device does not recognize the card, it will be very difficult. But in the absence of other provoking factors, we try to update iOS to current version or return it before previous version via iTunes.

Card reader or antenna

If the phone says that there is no SIM card, then the reason may lie in the antenna or card reader. Most often, the card reader or the card itself is damaged during careless installation or removal. Some people use dangerous improvised means that can damage fragile parts of the device. The contact tabs may become bent or even break. You have to change such elements or install a completely new connector.

"Locked" SIM card

It may happen that you try to insert a SIM card of a certain operator into the iPhone 5 or any other device, but the phone is factory configured to work with a different network. Numbers of others mobile operators in this case are not supported. You can deal with this problem by contacting a good service center. Or do it yourself, but this is risky; it is very easy to ruin expensive electronics.

Universal instructions

If the iPhone refuses to see even a new SIM card or a message appears on the phone screen about an invalid SIM or a micro-SIM not inserted, try the following manipulations:

It is necessary to check that the gadget works well in the area where the gadget is located. cellular the operator whose SIM card is inserted into the slot.
Try updating your iPhone to the most current version of iOS.
With help standard functionality iOS, put your phone in airplane mode. Then wait 10 seconds and turn off airplane mode.
Execute reboot iPhone. To do this, press and hold the Sleep/Wake button until the slider appears on the screen. Slide it to turn off the device. detailed instructions in the picture below.
Be sure to check if your operator's settings are updated. To do this, go to Settings, select General, and then click About This Device. If an update is required, a message will appear on the smartphone screen asking you to click “OK” or “Update”. Click “Update”, after a while we restart the device again, the communication error will most likely go away.
Carefully remove the SIM card from the holder and slide it back into the slot. Inspect the gadget and make sure that the SIM slot is tightly closed. If you are using a SIM card holder from a different iPhone model or a completely different smartphone, then it may not fit.
Try using a different SIM card. If you don’t have a backup option, then go to the communication store and ask the employees to provide a duty SIM card to check the device.
If after all the manipulations the message about the absence of a SIM card does not disappear, then contact the service Apple support. The operator will tell you what to do in a situation where the iPhone no longer sees the SIM card.

Conclusion

I hope our tips if your iPhone doesn’t see the SIM card helped you. Before you panic and rush to the nearest service center, try universal algorithm described above. In 85% of cases, these actions help solve the problem without additional time and money. The most important thing is accuracy and attentiveness. See you on the pages of the site!

Video instruction

We repair a broken SIM port ourselves.

Sim card, or SIM card, is the main component of any mobile device. Sometimes unpleasant cases happen when the phone does not see the SIM card. To understand what to do, you first need to find out the reasons Why doesn't my phone see the SIM card?.

First actions

The first step is to carefully examine the device. To do this, you need to turn off the device, remove the battery, and take out the non-working bag.
You need to check all the parameters:

Correct the SIM card. It probably moved due to strong shaking of the gadget, a fall or an impact, so the phone stopped seeing the SIM card;
Inspect the condition of the SIM card. Traces of dirt present may be the cause of failure. Quite gently but thoroughly wipe it with a specially treated napkin;
Press the SIM card to the case under the slot. The card holder may have become loose, therefore there is no contact. You can put a piece of paper. As an option, slightly bend the golden side so that it becomes voluminous;
Insert another SIM card. At normal operation It follows that the device is not at fault.

SIM card problem

If it is determined that the smartphone does not see the SIM card due to a malfunction of the latter, you should study and find a solution to the problem:

mechanical damage, scratches, wear and tear - this happens when it is frequently rearranged, carried in a pocket, purse or bag. The solution is to change the SIM card at any specialized communication store;
need to activate - often mobile operators are prohibited from using communication services before committing financial transaction, so the phone does not see the new SIM card. The way out is to replenish the balance by a certain amount;
validity period - long-term use usually explains why the smartphone does not see the SIM card. The solution is to contact the nearest branch mobile communications to replace sim;
correction for nano-sim, micro-sim format - unprofessional work of an employee service center entails such consequences as invisibility by the device. The solution is to go back and demand to replace the damaged accessory;
blocking - there are many reasons for blocking a subscriber. The solution is to call your operator's support service.