Fairphone 4: Unrecognized SIM card

You have just acquired an Fairphone 4 and when you turn it on, it displays the following error text: SIM card not recognized. At times the Fairphone 4 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the Fairphone 4 directly back. In truth, there are a lot of methods to solve this trouble. We will therefore observe in this tuto, what are the stuff to do and check to ensure the SIM card is recognized on your Fairphone 4.unrecognized-sim-card-Fairphone-4

What to do when ever the SIM card is not recognized on my Fairphone 4

If perhaps the SIM card is not recognized on your Fairphone 4, below is a list of stuff which could help you determine the source of the trouble, observe repairing the trouble.

Clean SIM card

One of the first stuff to do if the SIM card is not recognized on your Fairphone 4 is to clean it up. In fact, it might happen that dirt partially prevents the contact between the SIM card and the phone. To clean it, pass a small dab of cloth over it and check if it is not damaged.

Check the location of the SIM card on your Fairphone 4

At times the trouble might come from the location of the SIM card. In fact, it often occurs that small metal plugs that normally have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the Fairphone 4 from reading the SIM card. To solve this trouble, you simply need to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on another smartphone

To find out if the trouble comes 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 modify the SIM card.

Try another SIM card on your Fairphone 4

If perhaps the two previous steps do not give anything, it is important to test another SIM card to find out whenever the trouble comes from the card. In truth, whenever other SIM card work on the Fairphone 4, it is because the trouble comes from the card. Otherwise, it is at the level of the smartphone that we will have to look.

Verify that your Fairphone 4 is not Simlocker

When you have tried a lot of SIM cards on the Fairphone 4 and non-e are recognized, the smartphone may be Simlocker. This means that the Fairphone 4 will recognize only the SIM card of a specific operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of provide on the internet which could do that.

Check that the problem doesn’t come from the ROM installed on the Fairphone 4

This part mainly concerns the people who root the Fairphone 4 to install a ROM that is not original. If perhaps this is actually what you have completed, be aware that the unrecognized SIM card trouble is quite common after installing new ROMs. We highly recommend that you reinstall an original ROM and re-test it.

If perhaps nothing works

If perhaps all the above solutions do not work, we advise you to bring your Fairphone 4 and the SIM card back to 1 of your operator’s shops.