You have just purchased an LG L40 and when you turn it on, it displays the following error text: SIM card not recognized. Occasionally the LG L40 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the LG L40 directly back. Certainly, there are many tricks to solve this issue. We will therefore see in this tuto, what are the things to do and confirm so that the SIM card is recognized on your LG L40.
How to proceed when the SIM card is not recognized on my LG L40
In cases where the SIM card is not recognized on your LG L40, below is a list of things that could help you discover the source of the issue, see repairing the issue.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your LG L40 is to wash it up. Actually, it may happen that dirt partially prevents the contact between the SIM card and the mobile. 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 LG L40
Occasionally the issue may be caused by the tracking of the SIM card. Actually, it often occurs that little 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 LG L40 from reading the SIM card. To solve this issue, 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 a different cellphone
To find out if the issue comes from the SIM card, you can test it on a different phone and you will have your answer. If it is not recognized on other devices, you can change the SIM card.
Try another SIM card on your LG L40
In cases where the two previous steps do not give anything, it is important to test a different SIM card to find out in cases where the issue comes from the card. Certainly, in cases where other SIM card function on the LG L40, it is because the issue comes from the card. Otherwise, it is at the level of the cellphone that we will have to look.
Verify that your LG L40 is not Simlocker
When you have tried many SIM cards on the LG L40 and non-e are recognized, the cellphone could be Simlocker. It indicates that the LG L40 will recognize only the SIM card of a certain operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the web that could do that.
Check that the problem will not be caused by the ROM installed on the LG L40
This part mainly concerns the people who root the LG L40 to install a ROM that is not initial. In cases where this is actually what you have completed, be aware that the unrecognized SIM card issue is quite common after installing new ROMs. We suggest that you reinstall an initial ROM and re-test it.
In cases where nothing works
In cases where all the above solutions do not work, we advise you to bring your LG L40 and the SIM card back to 1 of your operator’s shops.
