You have just acquired an Oppo A91 and when you turn it on, it displays the following error message: SIM card not recognized. Sometimes the Oppo A91 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the Oppo A91 directly back. In fact, there are many methods to solve this issue. We will consequently observe in this content, what are the things to do and confirm to ensure the SIM card is recognized on your Oppo A91.
How to proceed when the SIM card is not recognized on my Oppo A91
Whenever the SIM card is not recognized on your Oppo A91, below is a list of things that will help you determine the source of the issue, observe repairing the issue.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your Oppo A91 is to wash it up. Actually, it may happen that dirt partially prevents the contact between the SIM card and the cellphone. To wash 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 Oppo A91
Sometimes the issue may be caused by the tracking of the SIM card. Actually, it often happens that little metal plugs that normally have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the Oppo A91 from reading the SIM card. To solve this issue, 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 another cellphone
To find out if the issue comes from the SIM card, you can test it on another phone and you will have your answer. When it is not recognized on other devices, you can modify the SIM card.
Try another SIM card on your Oppo A91
Whenever the two previous steps do not give anything, it can be important to test another SIM card to find out in the event that the issue comes from the card. In fact, in the event that other SIM card work on the Oppo A91, it can be because the issue comes from the card. Otherwise, it can be at the level of the cellphone that we will have to look.
Verify that your Oppo A91 is not Simlocker
When you have tried many SIM cards on the Oppo A91 and non-e are recognized, the cellphone could be Simlocker. This means that the Oppo A91 will recognize only the SIM card of a specific operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of provide on the net that will do that.
Check that the problem will not be caused by the ROM installed on the Oppo A91
This part mainly concerns the people who root the Oppo A91 to install a ROM that is not original. Whenever this is actually what you have carried out, be aware that the unrecognized SIM card issue is quite common after setting up fresh ROMs. We highly recommend that you reinstall an original ROM and re-test it.
Whenever nothing functions
Whenever all the above solutions do not work, we advise you to bring your Oppo A91 and the SIM card back to one of your operator’s shops.
