LG K12+: Unrecognized SIM card

You have just purchased an LG K12+ and when you turn it on, it displays the following error text: SIM card not recognized. Occasionally the LG K12+ does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the LG K12+ directly back. Certainly, there are many techniques to solve this trouble. We will therefore find out in this tuto, what are the stuff to do and verify so that the SIM card is recognized on your LG K12+.unrecognized-sim-card-LG-K12+

What to do when the SIM card is not recognized on my LG K12+

If the SIM card is not recognized on your LG K12+, below is a list of stuff that may 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 LG K12+ is to wash it up. In fact, it may possibly happen that dirt partially prevents the contact between the SIM card and the cellphone. 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 K12+

Occasionally the trouble may possibly sourced from the tracking of the SIM card. In fact, it often occurs that tiny 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 LG K12+ from reading the SIM card. To solve this trouble, you simply need 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 may test it on another phone and you will have your answer. In case it is not recognized on other devices, you may change the SIM card.

Try another SIM card on your LG K12+

If the two previous steps do not give anything, it is required to test another SIM card to find out in the event that the trouble comes from the card. Certainly, in the event that other SIM card work on the LG K12+, it is because the trouble comes from the card. Otherwise, it is at the level of the smartphone that we will have to look.

Verify that your LG K12+ is not Simlocker

When you have tried many SIM cards on the LG K12+ and non-e are recognized, the smartphone could be Simlocker. It indicates that the LG K12+ 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 offer on the internet that may do that.

Check that the problem does not sourced from the ROM installed on the LG K12+

This part mainly concerns the people who root the LG K12+ to install a ROM that is not initial. If this is actually what you have done, be aware that the unrecognized SIM card trouble is quite common after setting up fresh ROMs. We advise that you reinstall an initial ROM and re-test it.

If nothing functions

If all the above solutions do not work, we advise you to bring your LG K12+ and the SIM card back to one of your operator’s shops.