Sony Xperia ZL: Unrecognized SIM card

You have just purchased an Sony Xperia ZL and when you turn it on, it displays the following error message: SIM card not recognized. Occasionally the Sony Xperia ZL does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the Sony Xperia ZL directly back. Indeed, there are many methods to fix this trouble. We will therefore discover in this tuto, what are the things to do and check to ensure the SIM card is recognized on your Sony Xperia ZL.unrecognized-sim-card-Sony-Xperia-ZL

What to do when the SIM card is not recognized on my Sony Xperia ZL

In cases where the SIM card is not recognized on your Sony Xperia ZL, below is a list of things that will help you identify the source of the trouble, discover repairing the trouble.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Sony Xperia ZL is to clean it up. In truth, it might happen that dirt partially prevents the contact between the SIM card and the smartphone. To clean 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 Sony Xperia ZL

Occasionally the trouble might originate from the tracking of the SIM card. In truth, it often occurs that small 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 Sony Xperia ZL from reading the SIM card. To fix this trouble, you just simply need to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on another phone

To find out if the trouble originates from the SIM card, you’re able to test it on another phone and you will have your answer. In case it is not recognized on other devices, you’re able to modify the SIM card.

Try another SIM card on your Sony Xperia ZL

In cases where the two previous steps do not give anything, it is actually required to test another SIM card to find out if perhaps the trouble originates from the card. Indeed, if perhaps other SIM card work on the Sony Xperia ZL, it is actually because the trouble originates from the card. Otherwise, it is actually at the level of the phone that we will have to look.

Confirm that your Sony Xperia ZL is not Simlocker

In case you have tried many SIM cards on the Sony Xperia ZL and non-e are recognized, the phone might be Simlocker. This means that the Sony Xperia ZL will recognize only 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 will do that.

Check that the problem will not originate from the ROM installed on the Sony Xperia ZL

This part mainly concerns the people who root the Sony Xperia ZL to install a ROM that is not original. In cases where this is actually what you have completed, be aware that the unrecognized SIM card trouble is quite common after installing fresh ROMs. We highly recommend that you reinstall an original ROM and re-test it.

In cases where nothing works

In cases where all the above solutions do not work, we recommend you to bring your Sony Xperia ZL and the SIM card back to 1 of your operator’s shops.