You have just purchased an Huawei Mate 30 and when you turn it on, it displays the following error text message: SIM card not recognized. Oftentimes the Huawei Mate 30 does not recognize the SIM card and displays this message. In this case, it is not necessarily necessary to bring the Huawei Mate 30 directly back. Indeed, there are many tricks to solve this problem. We will therefore see in this tuto, what are the things to do and verify in order that the SIM card is recognized on your Huawei Mate 30.
What to do when the SIM card is not recognized on my Huawei Mate 30
In cases where the SIM card is not recognized on your Huawei Mate 30, below is a list of things which could help you discover the source of the problem, see repairing the problem.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your Huawei Mate 30 is to wash it up. In fact, it might happen that dirt partially prevents the contact between the SIM card and the mobile. 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 Huawei Mate 30
Oftentimes the problem might sourced from the location of the SIM card. In fact, it often happens 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 30 from reading the SIM card. To solve this problem, you just need to thicken the SIM a little by gluing 1 or two pieces of tape at the back.
Test the SIM card on another phone
To find out if the problem originates from the SIM card, you may test it on another phone and you will have your answer. If it is not recognized on other devices, you may modify the SIM card.
Try another SIM card on your Huawei Mate 30
In cases where the two previous steps do not give anything, it is necessary to test another SIM card to find out if the problem originates from the card. Indeed, if other SIM card work on the Huawei Mate 30, it is because the problem originates from the card. Otherwise, it is at the level of the phone that we will have to look.
Confirm that your Huawei Mate 30 is not Simlocker
In case you have tried many SIM cards on the Huawei Mate 30 and none are recognized, the phone could be Simlocker. This means that the Huawei Mate 30 will recognize only 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 net which could do that.
Check that the problem doesn’t sourced from the ROM installed on the Huawei Mate 30
This part mainly concerns the people who root the Huawei Mate 30 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 problem is quite common after setting up fresh ROMs. We highly recommend that you reinstall an initial ROM and re-test it.
In cases where nothing functions
In cases where all the above solutions do not work, we advise you to bring your Huawei Mate 30 and the SIM card back to 1 of your operator’s shops.
