Infinix S4: Unrecognized SIM card

You have just purchased an Infinix S4 and when you turn it on, it displays the following error message: SIM card not recognized. Sometimes the Infinix S4 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the Infinix S4 directly back. Certainly, there are several techniques to solve this trouble. We will consequently observe in this tuto, what are the things to do and confirm to ensure that the SIM card is recognized on your Infinix S4.unrecognized-sim-card-Infinix-S4

How to proceed when ever the SIM card is not recognized on my Infinix S4

If perhaps the SIM card is not recognized on your Infinix S4, below is a list of things that can help you discover the source of the trouble, observe repairing the trouble.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Infinix S4 is to clean it up. In truth, it might happen that dirt partially prevents the contact between the SIM card and the mobile. To clean it, pass a small dab of cloth over it and check if it is not damaged.

Check the tracking of the SIM card on your Infinix S4

Sometimes the trouble might be caused by the tracking of the SIM card. In truth, it often occurs that tiny metal plugs that most of the time have to come in contact with the SIM card are a bit relaxed. When this is the case, this prevents the Infinix S4 from reading the SIM card. To solve this trouble, you just have to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on another mobile phone

To find out if the trouble originates from the SIM card, you can actually test it on another phone and you will have your answer. If it is not recognized on other devices, you can actually change the SIM card.

Try another SIM card on your Infinix S4

If perhaps the two previous steps do not give anything, it can be required to test another SIM card to find out if the trouble originates from the card. Certainly, if other SIM card function on the Infinix S4, it can be because the trouble originates from the card. Otherwise, it can be at the level of the mobile phone that we will have to look.

Confirm that your Infinix S4 is not Simlocker

When you have tried several SIM cards on the Infinix S4 and none are recognized, the mobile phone could possibly be Simlocker. It indicates that the Infinix S4 will recognize only the SIM card of a certain operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the internet that can do that.

Check that the problem will not be caused by the ROM installed on the Infinix S4

This part mainly concerns the people who root the Infinix S4 to install a ROM that is not original. If perhaps this is actually what you have done, be aware that the unrecognized SIM card trouble is quite common after setting up new ROMs. We advise that you reinstall an original ROM and re-test it.

If perhaps nothing functions

If perhaps all the above solutions do not work, we recommend you to bring your Infinix S4 and the SIM card back to 1 of your operator’s shops.