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You have just bought an HUAWEI P20 and when you turn it on, it displays the following error message: SIM card not recognized. From time to time the HUAWEI P20 does not recognize the SIM card and displays this message. In this case, it is not necessarily important to bring the HUAWEI P20 directly back. Certainly, there are a lot of tips to fix this issue. We will consequently find out in this article, what are the things to do and verify to ensure the SIM card is recognized on your HUAWEI P20.unrecognized-sim-card-HUAWEI P20

How to proceed when the SIM card is not recognized on my HUAWEI P20

In the event that the SIM card is not recognized on your HUAWEI P20, below is a list of things that may help you determine the source of the issue, find out repairing the issue.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your HUAWEI P20 is to clean it up. In fact, it may 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 HUAWEI P20

From time to time the issue may originate from the tracking of the SIM card. In fact, it often happens that little metal plugs that most of the time have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the HUAWEI P20 from reading the SIM card. To fix this issue, 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 cellphone

To find out if the issue comes from the SIM card, you can test it on another phone and you will have your answer. In case it is not recognized on other devices, you can modify the SIM card.

Try another SIM card on your HUAWEI P20

In the event that the two previous steps do not give anything, it is actually important to test another SIM card to find out in cases where the issue comes from the card. Certainly, in cases where other SIM card function on the HUAWEI P20, it is actually because the issue comes from the card. Otherwise, it is actually at the level of the cellphone that we will have to look.

Verify that your HUAWEI P20 is not Simlocker

If you have tried a lot of SIM cards on the HUAWEI P20 and non-e are recognized, the cellphone may be Simlocker. It indicates that the HUAWEI P20 will recognize only the SIM card of a specific operator. In this case, you have to unlock it. You will find without a hassle a lot of offer on the web that may do that.

Check that the problem doesn’t originate from the ROM installed on the HUAWEI P20

This part mainly concerns the people who root the HUAWEI P20 to install a ROM that is not initial. In the event that this is actually what you have carried out, be aware that the unrecognized SIM card issue is quite common after installing new ROMs. We recommend that you reinstall an initial ROM and re-test it.

In the event that nothing functions

In the event that all the above solutions do not work, we advise you to bring your HUAWEI P20 and the SIM card back to one of your operator’s shops.