You have just bought an HUAWEI Mate 40 and when you turn it on, it displays the following error text message: SIM card not recognized. From time to time the HUAWEI Mate 40 does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the HUAWEI Mate 40 directly back. In truth, there are several methods to fix this trouble. We will consequently observe in this article, what are the stuff to do and confirm so that the SIM card is recognized on your HUAWEI Mate 40.
How to proceed when ever the SIM card is not recognized on my HUAWEI Mate 40
If perhaps the SIM card is not recognized on your HUAWEI Mate 40, below is a list of stuff that will help you identify the source of the trouble, observe repairing the trouble.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your HUAWEI Mate 40 is to clean it up. In truth, it may possibly happen that dirt partially prevents the contact between the SIM card and the telephone. To wash 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 40
From time to time the trouble may possibly be caused by the location of the SIM card. In truth, it often occurs that small metal plugs that normally have to come in contact with the SIM card are a bit relaxed. When this is the case, this prevents the HUAWEI Mate 40 from reading the SIM card. To fix this trouble, 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 telephone
To find out if the trouble comes from the SIM card, you can actually test it on another phone and you will have your answer. When it is not recognized on other devices, you can actually modify the SIM card.
Try another SIM card on your HUAWEI Mate 40
If perhaps the two previous steps do not give anything, it truly is required to test another SIM card to find out in cases where the trouble comes from the card. In truth, in cases where other SIM card function on the HUAWEI Mate 40, it truly is because the trouble comes from the card. Otherwise, it truly is at the level of the telephone that we will have to look.
Verify that your HUAWEI Mate 40 is not Simlocker
When you have tried several SIM cards on the HUAWEI Mate 40 and non-e are recognized, the telephone may perhaps be Simlocker. This implies that the HUAWEI Mate 40 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 that will do that.
Check that the problem does not be caused by the ROM installed on the HUAWEI Mate 40
This part mainly concerns the people who root the HUAWEI Mate 40 to install a ROM that is not original. If perhaps this is actually what you have carried out, be aware that the unrecognized SIM card trouble is quite common after setting up fresh ROMs. We recommend that you reinstall an original ROM and re-test it.
If perhaps nothing functions
If perhaps all the above solutions do not work, we recommend you to bring your HUAWEI Mate 40 and the SIM card back to 1 of your operator’s shops.
