Why my mobile does not recognize the SIM card

On some occasions, the smartphone may become a bit "crazy" because it does not work as usual and is not able to recognize components such as the SIM card. This can happen whether you have recently changed your mobile or operate with a terminal that carries dual SIM. But this situation is not alien in those cases where you have been using the same phone and the same SIM card for quite some time. They are cases in which one day the phone does not work well suddenly and you do not know why. If it has happened to you, I'm sure you've asked yourself why my mobile does not recognize the SIM card?

From, we will explain all the causes behind this lack of recognition and what can be done so that you know how to solve this problem without great difficulties.

The mobile does not recognize the SIM card due to dirt

One of the most common causes of why the mobile phone does not recognize the SIM card is the lack of cleanliness . And is that, although the slot of the card is inside, dirt accumulates there, which is just what makes it difficult to make contact and the terminal can recognize the card.

Anyway, it can also happen that the cleaning problem is not in the slot but in the SIM card itself, especially if you have more than one and you change the terminal or it was a long time ago that you had one and not the you used

In both cases, it is convenient to clean it so that the contact is made. But this cleaning has to be done with care because the golden grooves of the card and the own slot of the mobile are those that are responsible for making that contact. The best solution is to remove the dirt with a dry cotton cloth, but do not leave any fluff, otherwise the contact will not be good.

The mobile does not recognize the SIM because there are damages

In some cases, the problem is not the dirt, but damage that can have both the SIM card and the slot and that, in most cases, often go unnoticed because they are not always visible. In this way, the first thing you have to do is check for damage or not . For it:

• Take the SIM card and try it on another compatible terminal. If it works for you, the card is not damaged. But, if it does not recognize it either, it may be. The truth is that it is something more frequent than many people think. In fact, it is damaged very easily. A little moisture is more than enough to not work well.
• Check the terminal slot because, if the SIM card has worked on another smartphone, the damage may be in the slot.

In both cases, do not lose your temper because there is a solution. For example, if the problem is on the SIM card, you can go to the operator to request a copy. And so problem solved.

On the contrary, if the problem is in the terminal, you have several options:

• Clean the slot very well if you have not done it before or check that it has been well cleaned if you already did it.
• Insert a piece of paper over the SIM card so that it puts more pressure on the contacts and recognizes it.
• Rub with a graphite pencil the connections because this mineral helps to improve the contact as incredible as it may seem.

If even with all the SIM card works but is not recognized, you should look at other failures such as the possibility that the problem is in the software because you do not have it updated -you must proceed to update the operating system-, or because you have produced a casual error. In this last case, it is best to turn off the terminal with the SIM card inserted, remove the battery and put it back in, and then turn on the phone again.

If in spite of this, it does not work, surely it is that the SIM card slot has been broken and you will have to go to the repair shop where you bought the phone or the telephone operator, among other options.

Other reasons why the mobile can not recognize the SIM card

Although the causes that we have commented previously are the most common and explain most of the cases of why the mobile does not recognize the SIM card, there may also be other factors that influence this failure:

• Software problems: when browsing the Internet or opening a document, you may have received a virus that makes it difficult to read the SIM card or downloaded an incompatible program or application or installed incompatible features. In these cases, you will not have any choice but to reset the terminal so you have it as it left the factory. In general, it is done - it can vary depending on the phone model -, from the 'Settings' option where 'Backup' is and then 'Factory data reset'. But, before doing so, do not forget to make a backup copy because all the data is lost. And it has to be formatted as it is done with a computer. Here we tell you more about How to remove viruses on your mobile.
• Signal: sometimes the problem is that the mobile signal has been lost. This may be due to a network problem so it is convenient to wait a bit before doing anything to see if the company solves it. However, it is also possible that it is an internal problem of the mobile so it is convenient that you deactivate the signal and then activate it again. Normally, this is done from the section 'Information on the phone' in the option 'Deactivate mobile signal'. After deactivating, wait a few minutes before reactivating the signal and restart the mobile.

With these tips, we wait since you do not have to ask again why my mobile does not recognize the SIM card? Before any problem, it is advisable that you always go to professionals to help you solve it as soon as possible and in the most appropriate way.