You have just bought an LG Optimus 4X and when you turn it on, it displays the following error text: SIM card not recognized. Occasionally the LG Optimus 4X does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily necessary to bring the LG Optimus 4X directly back. In fact, there are several tricks to fix this issue. We will consequently discover in this content, what are the stuff to do and check to ensure that the SIM card is recognized on your LG Optimus 4X.
What to do when ever the SIM card is not recognized on my LG Optimus 4X
If the SIM card is not recognized on your LG Optimus 4X, below is a list of stuff that can help you identify the source of the issue, discover repairing the issue.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your LG Optimus 4X is to clean it up. In fact, it may happen that dirt partially prevents the contact between the SIM card and the mobile phone. To clean 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 LG Optimus 4X
Occasionally the issue may sourced from the location of the SIM card. In fact, it often occurs that small metal plugs that normally have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the LG Optimus 4X from reading the SIM card. To fix this issue, you just simply have to thicken the SIM a little by gluing 1 or two pieces of tape at the back.
Test the SIM card on a different mobile phone
To find out if the issue 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 change the SIM card.
Try another SIM card on your LG Optimus 4X
If the two previous steps do not give anything, it is necessary to test a different SIM card to find out whenever the issue comes from the card. In fact, whenever other SIM card function on the LG Optimus 4X, it is because the issue comes from the card. Otherwise, it is at the level of the mobile phone that we will have to look.
Verify that your LG Optimus 4X is not Simlocker
If you have tried several SIM cards on the LG Optimus 4X and non-e are recognized, the mobile phone may be Simlocker. This implies that the LG Optimus 4X will recognize simply the SIM card of a specific operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of provide on the web that can do that.
Check that the problem will not sourced from the ROM installed on the LG Optimus 4X
This part mainly concerns the people who root the LG Optimus 4X to install a ROM that is not initial. If this is actually what you have completed, be aware that the unrecognized SIM card issue is quite common after setting up fresh ROMs. We highly recommend that you reinstall an initial ROM and re-test it.
If nothing works
If all the above solutions do not work, we advise you to bring your LG Optimus 4X and the SIM card back to 1 of your operator’s shops.
