HUAWEI Mate 20 Pro: Unrecognized SIM card

You have just bought an HUAWEI Mate 20 Pro and when you turn it on, it displays the following error text message: SIM card not recognized. At times the HUAWEI Mate 20 Pro does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the HUAWEI Mate 20 Pro directly back. Indeed, there are a lot of tricks to fix this trouble. We will for that reason find out in this tuto, what are the things to do and confirm to ensure the SIM card is recognized on your HUAWEI Mate 20 Pro.unrecognized-sim-card-huawei-mate-20-pro

How to proceed when ever the SIM card is not recognized on my HUAWEI Mate 20 Pro

Whenever the SIM card is not recognized on your HUAWEI Mate 20 Pro, below is a list of things which could help you discover the source of the trouble, find out repairing the trouble.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your HUAWEI Mate 20 Pro 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 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 Mate 20 Pro

At times the trouble may possibly result from the tracking 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 relaxed. When this is the case, this prevents the HUAWEI Mate 20 Pro from reading the SIM card. To fix this trouble, you 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 phone

To find out if the trouble originates 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 HUAWEI Mate 20 Pro

Whenever the two previous steps do not give anything, it truly is required to test a different SIM card to find out whenever the trouble originates from the card. Indeed, whenever other SIM card work on the HUAWEI Mate 20 Pro, it truly is because the trouble originates from the card. Otherwise, it truly is at the level of the phone that we will have to look.

Check that your HUAWEI Mate 20 Pro is not Simlocker

When you have tried a lot of SIM cards on the HUAWEI Mate 20 Pro and non-e are recognized, the phone might be Simlocker. It indicates that the HUAWEI Mate 20 Pro will recognize simply the SIM card of a specific operator. In this case, you have to unlock it. You will find without a hassle a lot of provide on the web which could do that.

Check that the problem does not result from the ROM installed on the HUAWEI Mate 20 Pro

This part mainly concerns the people who root the HUAWEI Mate 20 Pro to install a ROM that is not original. Whenever this is actually what you have carried out, be aware that the unrecognized SIM card trouble is quite common after setting up new ROMs. We advise that you reinstall an original ROM and re-test it.

Whenever nothing works

Whenever all the above solutions do not work, we advise you to bring your HUAWEI Mate 20 Pro and the SIM card back to 1 of your operator’s shops.