Samsung Galaxy M33: Unrecognized SIM card

You have just purchased an Samsung Galaxy M33 and when you turn it on, it displays the following error text: SIM card not recognized. Sometimes the Samsung Galaxy M33 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily necessary to bring the Samsung Galaxy M33 directly back. Indeed, there are several tips to fix this problem. We will therefore see in this tuto, what are the things to do and check to ensure that the SIM card is recognized on your Samsung Galaxy M33.unrecognized-sim-card-samsung-galaxy-m33

How to proceed when the SIM card is not recognized on my Samsung Galaxy M33

Whenever the SIM card is not recognized on your Samsung Galaxy M33, below is a list of things that can help you determine the source of the problem, see repairing the problem.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Samsung Galaxy M33 is to clean it up. Actually, it might happen that dirt partially prevents the contact between the SIM card and the mobile 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 Samsung Galaxy M33

Sometimes the problem might result from the location of the SIM card. Actually, 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 M33 from reading the SIM card. To fix this problem, 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 a different smartphone

To find out if the problem 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 M33

Whenever the two previous steps do not give anything, it is necessary to test a different SIM card to find out in the event that the problem comes from the card. Indeed, in the event that other SIM card work on the Samsung Galaxy M33, it is because the problem comes from the card. Otherwise, it is at the level of the smartphone that we will have to look.

Confirm that your Samsung Galaxy M33 is not Simlocker

In case you have tried several SIM cards on the Samsung Galaxy M33 and non-e are recognized, the smartphone could possibly be Simlocker. This means that the Samsung Galaxy M33 will recognize just the SIM card of a certain operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of provide on the web that can do that.

Check that the problem will not result from the ROM installed on the Samsung Galaxy M33

This part mainly concerns the people who root the Samsung Galaxy M33 to install a ROM that is not original. Whenever this is actually what you have carried out, be aware that the unrecognized SIM card problem is quite common after installing new ROMs. We recommend that you reinstall an original ROM and re-test it.

Whenever nothing works

Whenever all the above solutions do not work, we advise you to bring your Samsung Galaxy M33 and the SIM card back to 1 of your operator’s shops.