Huawei Ascend G620S: Unrecognized SIM card

You have just bought an Huawei Ascend G620S and when you turn it on, it displays the following error text: SIM card not recognized. At times the Huawei Ascend G620S does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the Huawei Ascend G620S directly back. In truth, there are many tricks to solve this issue. We will consequently discover in this tuto, what are the stuff to do and check to ensure that the SIM card is recognized on your Huawei Ascend G620S.unrecognized-sim-card-Huawei-Ascend-G620S

How to proceed when the SIM card is not recognized on my Huawei Ascend G620S

In cases where the SIM card is not recognized on your Huawei Ascend G620S, below is a list of stuff that will help you discover the source of the issue, discover repairing the issue.

Clean SIM card

One of the first stuff to do if the SIM card is not recognized on your Huawei Ascend G620S is to clean it up. In fact, it might happen that dirt partially prevents the contact between the SIM card and the telephone. 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 Ascend G620S

At times the issue might be caused by the location of the SIM card. In fact, it often happens that tiny metal plugs that most of the time have to come in contact with the SIM card are a bit relaxed. When this is the case, this prevents the Huawei Ascend G620S from reading the SIM card. To solve this issue, you simply 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 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 change the SIM card.

Try another SIM card on your Huawei Ascend G620S

In cases where the two previous steps do not give anything, it’s required to test another SIM card to find out in cases where the issue comes from the card. In truth, in cases where other SIM card function on the Huawei Ascend G620S, it’s because the issue comes from the card. Otherwise, it’s at the level of the phone that we will have to look.

Verify that your Huawei Ascend G620S is not Simlocker

In case you have tried many SIM cards on the Huawei Ascend G620S and none are recognized, the phone could be Simlocker. It indicates that the Huawei Ascend G620S 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 will not be caused by the ROM installed on the Huawei Ascend G620S

This part mainly concerns the people who root the Huawei Ascend G620S to install a ROM that is not original. In cases where this is actually what you have done, be aware that the unrecognized SIM card issue is quite common after setting up fresh ROMs. We recommend that you reinstall an original ROM and re-test it.

In cases where nothing works

In cases where all the above solutions do not work, we recommend you to bring your Huawei Ascend G620S and the SIM card back to 1 of your operator’s shops.