You have just acquired an Nokia Lumia 520 and when you turn it on, it displays the following error message: SIM card not recognized. At times the Nokia Lumia 520 does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the Nokia Lumia 520 directly back. In truth, there are several methods to solve this problem. We will therefore observe in this content, what are the stuff to do and verify in order that the SIM card is recognized on your Nokia Lumia 520.
How to proceed when the SIM card is not recognized on my Nokia Lumia 520
If perhaps the SIM card is not recognized on your Nokia Lumia 520, below is a list of stuff that could help you identify the source of the problem, observe repairing the problem.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Nokia Lumia 520 is to clean it up. Actually, it may 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 520
At times the problem may be caused by the tracking of the SIM card. Actually, it often occurs that tiny metal plugs that most of the time have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the Nokia Lumia 520 from reading the SIM card. To solve this problem, you just 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 telephone
To find out if the problem comes from the SIM card, you may test it on a different phone and you will have your answer. When it is not recognized on other devices, you may modify the SIM card.
Try another SIM card on your Nokia Lumia 520
If perhaps the two previous steps do not give anything, it truly is required to test a different SIM card to find out whenever the problem comes from the card. In truth, whenever other SIM card work on the Nokia Lumia 520, it truly is because the problem comes from the card. Otherwise, it truly is at the level of the telephone that we will have to look.
Check that your Nokia Lumia 520 is not Simlocker
If you have tried several SIM cards on the Nokia Lumia 520 and non-e are recognized, the telephone may be Simlocker. This means that the Nokia Lumia 520 will recognize only the SIM card of a specific operator. In this case, you have to unlock it. You will find without a hassle a lot of provide on the internet that could do that.
Check that the problem will not be caused by the ROM installed on the Nokia Lumia 520
This part mainly concerns the people who root the Nokia Lumia 520 to install a ROM that is not initial. If perhaps this is actually what you have carried out, be aware that the unrecognized SIM card problem is quite common after setting up new ROMs. We recommend that you reinstall an initial ROM and re-test it.
If perhaps nothing functions
If perhaps all the above solutions do not work, we advise you to bring your Nokia Lumia 520 and the SIM card back to 1 of your operator’s shops.
