You have just bought an Oppo K3 and when you turn it on, it displays the following error text: SIM card not recognized. Occasionally the Oppo K3 does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the Oppo K3 directly back. Certainly, there are many methods to fix this problem. We will consequently see in this content, what are the stuff to do and verify to ensure the SIM card is recognized on your Oppo K3.
How to proceed when the SIM card is not recognized on my Oppo K3
Whenever the SIM card is not recognized on your Oppo K3, below is a list of stuff that could help you identify the source of the problem, see repairing the problem.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Oppo K3 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 K3
Occasionally the problem may possibly come from the tracking of the SIM card. In fact, it often happens that small metal plugs that most of the time have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the Oppo K3 from reading the SIM card. To fix 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 another cellphone
To find out if the problem comes from the SIM card, you’re able to test it on another phone and you will have your answer. If it is not recognized on other devices, you’re able to change the SIM card.
Try another SIM card on your Oppo K3
Whenever the two previous steps do not give anything, it is actually required to test another SIM card to find out in cases where the problem comes from the card. Certainly, in cases where other SIM card function on the Oppo K3, it is actually because the problem comes from the card. Otherwise, it is actually at the level of the cellphone that we will have to look.
Verify that your Oppo K3 is not Simlocker
In case you have tried many SIM cards on the Oppo K3 and none are recognized, the cellphone might be Simlocker. This implies that the Oppo K3 will recognize just 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 that could do that.
Check that the problem doesn’t come from the ROM installed on the Oppo K3
This part mainly concerns the people who root the Oppo K3 to install a ROM that is not initial. Whenever this is actually what you have completed, be aware that the unrecognized SIM card problem is quite common after installing fresh ROMs. We highly recommend that you reinstall an initial ROM and re-test it.
Whenever nothing functions
Whenever all the above solutions do not work, we recommend you to bring your Oppo K3 and the SIM card back to one of your operator’s shops.
