Nokia Lumia 735: Unrecognized SIM card

You have just acquired an Nokia Lumia 735 and when you turn it on, it displays the following error text: SIM card not recognized. Sometimes the Nokia Lumia 735 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the Nokia Lumia 735 directly back. In fact, there are many methods to fix this problem. We will for that reason observe in this article, what are the things to do and check so that the SIM card is recognized on your Nokia Lumia 735.unrecognized-sim-card-Nokia-Lumia-735

What to do when the SIM card is not recognized on my Nokia Lumia 735

In the event that the SIM card is not recognized on your Nokia Lumia 735, below is a list of things that may help you determine the source of the problem, observe repairing the problem.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Nokia Lumia 735 is to clean it up. In fact, it might happen that dirt partially prevents the contact between the SIM card and the mobile 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 Nokia Lumia 735

Sometimes the problem might originate from the tracking of the SIM card. In fact, it often occurs that little metal plugs that normally have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the Nokia Lumia 735 from reading the SIM card. To fix this problem, 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 smartphone

To find out if the problem comes from the SIM card, you can test it on a different phone and you will have your answer. When it is not recognized on other devices, you can modify the SIM card.

Try another SIM card on your Nokia Lumia 735

In the event that the two previous steps do not give anything, it’s required to test a different SIM card to find out whenever the problem comes from the card. In fact, whenever other SIM card function on the Nokia Lumia 735, it’s because the problem comes from the card. Otherwise, it’s at the level of the smartphone that we will have to look.

Confirm that your Nokia Lumia 735 is not Simlocker

If you have tried many SIM cards on the Nokia Lumia 735 and none are recognized, the smartphone could be Simlocker. It indicates that the Nokia Lumia 735 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 offer on the net that may do that.

Check that the problem will not originate from the ROM installed on the Nokia Lumia 735

This part mainly concerns the people who root the Nokia Lumia 735 to install a ROM that is not initial. In the event that this is actually what you have completed, be aware that the unrecognized SIM card problem is quite common after setting up new ROMs. We highly recommend that you reinstall an initial ROM and re-test it.

In the event that nothing functions

In the event that all the above solutions do not work, we advise you to bring your Nokia Lumia 735 and the SIM card back to 1 of your operator’s shops.