Oppo R15: Unrecognized SIM card

You have just bought an Oppo R15 and when you turn it on, it displays the following error text message: SIM card not recognized. Occasionally the Oppo R15 does not recognize the SIM card and displays this message. In this case, it is not necessarily important to bring the Oppo R15 directly back. Certainly, there are a lot of methods to fix this problem. We will consequently see in this article, what are the stuff to do and check in order that the SIM card is recognized on your Oppo R15.unrecognized-sim-card-Oppo-R15

How to proceed when ever the SIM card is not recognized on my Oppo R15

Whenever the SIM card is not recognized on your Oppo R15, below is a list of stuff that could help you discover 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 R15 is to wash it up. Actually, it may possibly happen that dirt partially prevents the contact between the SIM card and the mobile. 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 R15

Occasionally the problem may possibly result from the tracking of the SIM card. Actually, it often happens that little 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 Oppo R15 from reading the SIM card. To fix this problem, 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 phone

To find out if the problem originates from the SIM card, you can actually test it on another 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 R15

Whenever the two previous steps do not give anything, it is actually important to test another SIM card to find out in the event that the problem originates from the card. Certainly, in the event that other SIM card function on the Oppo R15, it is actually because the problem originates from the card. Otherwise, it is actually at the level of the phone that we will have to look.

Check that your Oppo R15 is not Simlocker

When you have tried a lot of SIM cards on the Oppo R15 and none are recognized, the phone could be Simlocker. This implies that the Oppo R15 will recognize only 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 web that could do that.

Check that the problem doesn’t result from the ROM installed on the Oppo R15

This part mainly concerns the people who root the Oppo R15 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 new ROMs. We suggest that you reinstall an initial ROM and re-test it.

Whenever nothing works

Whenever all the above solutions do not work, we advise you to bring your Oppo R15 and the SIM card back to one of your operator’s shops.