You have just purchased an Oppo A53 and when you turn it on, it displays the following error message: SIM card not recognized. Sometimes the Oppo A53 does not recognize the SIM card and displays this message. In this case, it is not necessarily necessary to bring the Oppo A53 directly back. In truth, there are a lot of techniques to solve this problem. We will therefore discover in this tuto, what are the stuff to do and confirm to ensure the SIM card is recognized on your Oppo A53.
How to proceed when ever the SIM card is not recognized on my Oppo A53
In the event that the SIM card is not recognized on your Oppo A53, below is a list of stuff that may help you determine the source of the problem, discover repairing the problem.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Oppo A53 is to clean it up. In fact, it may possibly happen that dirt partially prevents the contact between the SIM card and the smartphone. 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 Oppo A53
Sometimes the problem may possibly come from the tracking of the SIM card. In fact, it often happens that small metal plugs that normally have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the Oppo A53 from reading the SIM card. To solve this problem, you just 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 mobile phone
To find out if the problem comes from the SIM card, you can actually test it on a different phone and you will have your answer. When it is not recognized on other devices, you can actually modify the SIM card.
Try another SIM card on your Oppo A53
In the event that the two previous steps do not give anything, it is necessary to test a different SIM card to find out in cases where the problem comes from the card. In truth, in cases where other SIM card function on the Oppo A53, it is because the problem comes from the card. Otherwise, it is at the level of the mobile phone that we will have to look.
Check that your Oppo A53 is not Simlocker
In case you have tried a lot of SIM cards on the Oppo A53 and non-e are recognized, the mobile phone might be Simlocker. This implies that the Oppo A53 will recognize just the SIM card of a specific operator. In this case, you have to unlock it. You will find without a hassle a lot of provide on the web that may do that.
Check that the problem will not come from the ROM installed on the Oppo A53
This part mainly concerns the people who root the Oppo A53 to install a ROM that is not initial. In the event that this is actually what you have done, be aware that the unrecognized SIM card problem is quite common after installing fresh ROMs. We suggest that you reinstall an initial 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 Oppo A53 and the SIM card back to one of your operator’s shops.
