You have just bought an Samsung Galaxy S3 and when you turn it on, it displays the following error message: SIM card not recognized. From time to time the Samsung Galaxy S3 does not recognize the SIM card and displays this message. In this case, it is not necessarily necessary to bring the Samsung Galaxy S3 directly back. Indeed, there are several tricks to solve this trouble. We will therefore find out in this article, what are the stuff to do and check so that the SIM card is recognized on your Samsung Galaxy S3.
How to proceed when the SIM card is not recognized on my Samsung Galaxy S3
If perhaps the SIM card is not recognized on your Samsung Galaxy S3, below is a list of stuff that can help you discover the source of the trouble, find out repairing the trouble.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Samsung Galaxy S3 is to clean it up. Actually, 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 location of the SIM card on your Samsung Galaxy S3
From time to time the trouble might come from the location of the SIM card. Actually, it often happens that little 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 Samsung Galaxy S3 from reading the SIM card. To solve this trouble, you simply have 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 trouble comes from the SIM card, you can actually test it on another phone and you will have your answer. When it is not recognized on other devices, you can actually change the SIM card.
Try another SIM card on your Samsung Galaxy S3
If perhaps the two previous steps do not give anything, it truly is necessary to test another SIM card to find out if the trouble comes from the card. Indeed, if other SIM card work on the Samsung Galaxy S3, it truly is because the trouble comes from the card. Otherwise, it truly is at the level of the smartphone that we will have to look.
Confirm that your Samsung Galaxy S3 is not Simlocker
When you have tried several SIM cards on the Samsung Galaxy S3 and none are recognized, the smartphone may be Simlocker. This implies that the Samsung Galaxy S3 will recognize just the SIM card of a certain operator. In this case, you have to unlock it. You will find without a hassle a lot of offer on the internet that can do that.
Check that the problem does not come from the ROM installed on the Samsung Galaxy S3
This part mainly concerns the people who root the Samsung Galaxy S3 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 trouble is quite common after installing new ROMs. We suggest 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 Samsung Galaxy S3 and the SIM card back to one of your operator’s shops.
