Samsung Galaxy 551: Unrecognized SIM card

You have just acquired an Samsung Galaxy 551 and when you turn it on, it displays the following error text message: SIM card not recognized. Occasionally the Samsung Galaxy 551 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the Samsung Galaxy 551 directly back. In fact, there are several tricks to fix this problem. We will therefore discover in this article, what are the things to do and verify so that the SIM card is recognized on your Samsung Galaxy 551.unrecognized-sim-card-Samsung-Galaxy-551

What to do when ever the SIM card is not recognized on my Samsung Galaxy 551

If the SIM card is not recognized on your Samsung Galaxy 551, below is a list of things that will help you identify the source of the problem, discover repairing the problem.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Samsung Galaxy 551 is to clean it up. In truth, it may 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 location of the SIM card on your Samsung Galaxy 551

Occasionally the problem may come from the location of the SIM card. In truth, it often occurs that small metal plugs that most of the time have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the Samsung Galaxy 551 from reading the SIM card. To fix this problem, you simply need to thicken the SIM a little by gluing one or two pieces of tape at the back.

Test the SIM card on another smartphone

To find out if the problem comes from the SIM card, you’re able to test it on another phone and you will have your answer. In case it is not recognized on other devices, you’re able to modify the SIM card.

Try another SIM card on your Samsung Galaxy 551

If the two previous steps do not give anything, it is required to test another SIM card to find out if perhaps the problem comes from the card. In fact, if perhaps other SIM card work on the Samsung Galaxy 551, it is because the problem comes from the card. Otherwise, it is at the level of the smartphone that we will have to look.

Check that your Samsung Galaxy 551 is not Simlocker

When you have tried several SIM cards on the Samsung Galaxy 551 and non-e are recognized, the smartphone may perhaps be Simlocker. This means that the Samsung Galaxy 551 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 that will do that.

Check that the problem does not come from the ROM installed on the Samsung Galaxy 551

This part mainly concerns the people who root the Samsung Galaxy 551 to install a ROM that is not original. If this is actually what you have done, be aware that the unrecognized SIM card problem is quite common after setting up new ROMs. We highly recommend that you reinstall an original ROM and re-test it.

If nothing works

If all the above solutions do not work, we recommend you to bring your Samsung Galaxy 551 and the SIM card back to one of your operator’s shops.