You have just purchased an Blackview A90 and when you turn it on, it displays the following error message: SIM card not recognized. Occasionally the Blackview A90 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the Blackview A90 directly back. Certainly, there are a lot of methods to solve this trouble. We will for that reason observe in this article, what are the things to do and verify so that the SIM card is recognized on your Blackview A90.
How to proceed when the SIM card is not recognized on my Blackview A90
Whenever the SIM card is not recognized on your Blackview A90, below is a list of things that can help you determine the source of the trouble, observe repairing the trouble.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your Blackview A90 is to wash it up. Actually, it might 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 Blackview A90
Occasionally the trouble might result from the location of the SIM card. Actually, it often occurs 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 Blackview A90 from reading the SIM card. To solve 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 another smartphone
To find out if the trouble originates from the SIM card, you can test it on another phone and you will have your answer. If it is not recognized on other devices, you can modify the SIM card.
Try another SIM card on your Blackview A90
Whenever the two previous steps do not give anything, it is required to test another SIM card to find out whenever the trouble originates from the card. Certainly, whenever other SIM card work on the Blackview A90, it is because the trouble originates from the card. Otherwise, it is at the level of the smartphone that we will have to look.
Confirm that your Blackview A90 is not Simlocker
When you have tried a lot of SIM cards on the Blackview A90 and non-e are recognized, the smartphone might be Simlocker. This means that the Blackview A90 will recognize only the SIM card of a certain operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the net that can do that.
Check that the problem does not result from the ROM installed on the Blackview A90
This part mainly concerns the people who root the Blackview A90 to install a ROM that is not initial. Whenever this is actually what you have completed, be aware that the unrecognized SIM card trouble is quite common after setting up fresh ROMs. We highly recommend that you reinstall an initial ROM and re-test it.
Whenever nothing works
Whenever all the above solutions do not work, we recommend you to bring your Blackview A90 and the SIM card back to 1 of your operator’s shops.
