You have just bought an OPPO A71 and when you turn it on, it displays the following error text: SIM card not recognized. At times the OPPO A71 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the OPPO A71 directly back. Indeed, there are several methods to fix this trouble. We will therefore see in this article, what are the stuff to do and check to ensure that the SIM card is recognized on your OPPO A71.
What to do when the SIM card is not recognized on my OPPO A71
If the SIM card is not recognized on your OPPO A71, below is a list of stuff that will help you discover the source of the trouble, see repairing the trouble.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your OPPO A71 is to clean it up. In fact, it may possibly happen that dirt partially prevents the contact between the SIM card and the cellphone. 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 OPPO A71
At times the trouble may possibly be caused by the location of the SIM card. In fact, it often happens that tiny 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 OPPO A71 from reading the SIM card. To fix this trouble, you just have to thicken the SIM a little by gluing one or two pieces of tape at the back.
Test the SIM card on another telephone
To find out if the trouble originates 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 modify the SIM card.
Try another SIM card on your OPPO A71
If the two previous steps do not give anything, it can be important to test another SIM card to find out whenever the trouble originates from the card. Indeed, whenever other SIM card function on the OPPO A71, it can be because the trouble originates from the card. Otherwise, it can be at the level of the telephone that we will have to look.
Verify that your OPPO A71 is not Simlocker
In case you have tried several SIM cards on the OPPO A71 and non-e are recognized, the telephone may perhaps be Simlocker. It indicates that the OPPO A71 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 provide on the web that will do that.
Check that the problem doesn’t be caused by the ROM installed on the OPPO A71
This part mainly concerns the people who root the OPPO A71 to install a ROM that is not original. If this is actually what you have done, be aware that the unrecognized SIM card trouble is quite common after setting up new ROMs. We highly recommend that you reinstall an original ROM and re-test it.
If nothing works
If all the above solutions do not work, we advise you to bring your OPPO A71 and the SIM card back to one of your operator’s shops.
