You have just purchased an Nokia Asha 503 and when you turn it on, it displays the following error message: SIM card not recognized. From time to time the Nokia Asha 503 does not recognize the SIM card and displays this message. In this case, it is not necessarily necessary to bring the Nokia Asha 503 directly back. In truth, there are many methods to solve this trouble. We will consequently find out in this content, what are the things to do and verify so that the SIM card is recognized on your Nokia Asha 503.
How to proceed when the SIM card is not recognized on my Nokia Asha 503
If the SIM card is not recognized on your Nokia Asha 503, below is a list of things that will help you discover the source of the trouble, find out repairing the trouble.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your Nokia Asha 503 is to clean it up. Actually, it may possibly happen that dirt partially prevents the contact between the SIM card and the telephone. 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 Nokia Asha 503
From time to time the trouble may possibly be caused by the location of the SIM card. Actually, it often happens that small metal plugs that most of the time have to come in contact with the SIM card are a bit relaxed. When this is the case, this prevents the Nokia Asha 503 from reading the SIM card. To solve this trouble, 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 phone
To find out if the trouble originates 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 Asha 503
If the two previous steps do not give anything, it can be necessary to test a different SIM card to find out whenever the trouble originates from the card. In truth, whenever other SIM card function on the Nokia Asha 503, it can be because the trouble originates from the card. Otherwise, it can be at the level of the phone that we will have to look.
Check that your Nokia Asha 503 is not Simlocker
In case you have tried many SIM cards on the Nokia Asha 503 and none are recognized, the phone could be Simlocker. It indicates that the Nokia Asha 503 will recognize simply the SIM card of a certain operator. In this case, you have to unlock it. You will find without a hassle a lot of provide on the net that will do that.
Check that the problem doesn’t be caused by the ROM installed on the Nokia Asha 503
This part mainly concerns the people who root the Nokia Asha 503 to install a ROM that is not initial. If this is actually what you have carried out, be aware that the unrecognized SIM card trouble is quite common after installing fresh 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 recommend you to bring your Nokia Asha 503 and the SIM card back to 1 of your operator’s shops.
