Samsung Galaxy S2: Unrecognized SIM card

You have just purchased an Samsung Galaxy S2 and when you turn it on, it displays the following error text: SIM card not recognized. At times the Samsung Galaxy S2 does not recognize the SIM card and displays this message. In this case, it is not necessarily necessary to bring the Samsung Galaxy S2 directly back. In fact, there are many methods to fix this issue. We will consequently find out in this content, what are the things to do and confirm so that the SIM card is recognized on your Samsung Galaxy S2.unrecognized-sim-card-Samsung-Galaxy-S2

How to proceed when ever the SIM card is not recognized on my Samsung Galaxy S2

If the SIM card is not recognized on your Samsung Galaxy S2, below is a list of things which could help you discover the source of the issue, find out repairing the issue.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Samsung Galaxy S2 is to clean it up. In truth, it might happen that dirt partially prevents the contact between the SIM card and the phone. To wash 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 Samsung Galaxy S2

At times the issue might be caused by the tracking of the SIM card. In truth, it often happens that tiny metal plugs that normally have to come in contact with the SIM card are a bit relaxed. When this is the case, this prevents the Samsung Galaxy S2 from reading the SIM card. To fix this issue, you just simply have to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on a different phone

To find out if the issue comes from the SIM card, you’re able to test it on a different phone and you will have your answer. If it is not recognized on other devices, you’re able to change the SIM card.

Try another SIM card on your Samsung Galaxy S2

If the two previous steps do not give anything, it is necessary to test a different SIM card to find out whenever the issue comes from the card. In fact, whenever other SIM card work on the Samsung Galaxy S2, it is because the issue comes from the card. Otherwise, it is at the level of the phone that we will have to look.

Verify that your Samsung Galaxy S2 is not Simlocker

If you have tried many SIM cards on the Samsung Galaxy S2 and none are recognized, the phone could possibly be Simlocker. It indicates that the Samsung Galaxy S2 will recognize simply the SIM card of a specific operator. In this case, you have to unlock it. You will find without a hassle a lot of offer on the internet which could do that.

Check that the problem will not be caused by the ROM installed on the Samsung Galaxy S2

This part mainly concerns the people who root the Samsung Galaxy S2 to install a ROM that is not initial. If this is actually what you have carried out, be aware that the unrecognized SIM card issue is quite common after installing new ROMs. We suggest that you reinstall an initial ROM and re-test it.

If nothing functions

If all the above solutions do not work, we advise you to bring your Samsung Galaxy S2 and the SIM card back to 1 of your operator’s shops.