BQ Aquaris M4.5: Unrecognized SIM card

You have just purchased an BQ Aquaris M4.5 and when you turn it on, it displays the following error text message: SIM card not recognized. From time to time the BQ Aquaris M4.5 does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the BQ Aquaris M4.5 directly back. In fact, there are several methods to fix this trouble. We will for that reason find out in this article, what are the things to do and verify to ensure that the SIM card is recognized on your BQ Aquaris M4.5.unrecognized-sim-card-BQ-Aquaris-M4.5

How to proceed when ever the SIM card is not recognized on my BQ Aquaris M4.5

In the event that the SIM card is not recognized on your BQ Aquaris M4.5, 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 BQ Aquaris M4.5 is to wash it up. In truth, it might happen that dirt partially prevents the contact between the SIM card and the phone. 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 BQ Aquaris M4.5

From time to time the trouble might result from the tracking of the SIM card. In truth, it often happens that little metal plugs that most of the time have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the BQ Aquaris M4.5 from reading the SIM card. To fix this trouble, 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 a different telephone

To find out if the trouble comes from the SIM card, you may test it on a different phone and you will have your answer. In case it is not recognized on other devices, you may change the SIM card.

Try another SIM card on your BQ Aquaris M4.5

In the event that the two previous steps do not give anything, it is required to test a different SIM card to find out in the event that the trouble comes from the card. In fact, in the event that other SIM card work on the BQ Aquaris M4.5, it is because the trouble comes from the card. Otherwise, it is at the level of the telephone that we will have to look.

Check that your BQ Aquaris M4.5 is not Simlocker

If you have tried several SIM cards on the BQ Aquaris M4.5 and none are recognized, the telephone could be Simlocker. It indicates that the BQ Aquaris M4.5 will recognize simply 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 internet which could do that.

Check that the problem will not result from the ROM installed on the BQ Aquaris M4.5

This part mainly concerns the people who root the BQ Aquaris M4.5 to install a ROM that is not original. In the event that this is actually what you have completed, be aware that the unrecognized SIM card trouble is quite common after installing fresh ROMs. We highly recommend that you reinstall an original ROM and re-test it.

In the event that nothing works

In the event that all the above solutions do not work, we advise you to bring your BQ Aquaris M4.5 and the SIM card back to one of your operator’s shops.