Oppo: Unrecognized SIM card

You have just purchased an Oppo and when you turn it on, it displays the following error text message: SIM card not recognized. From time to time the Oppo does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily necessary to bring the Oppo directly back. In fact, there are a lot of methods to fix this issue. We will for that reason discover in this tuto, what are the things to do and verify to ensure the SIM card is recognized on your Oppo.unrecognized-sim-card-Oppo

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

If perhaps the SIM card is not recognized on your Oppo, below is a list of things that can help you determine the source of the issue, discover repairing the issue.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Oppo is to wash it up. In truth, it might 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

From time to time the issue might come from the tracking of the SIM card. In truth, it often happens that tiny 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 from reading the SIM card. To fix this issue, you simply need to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on another smartphone

To find out if the issue originates from the SIM card, you’re able to test it on another phone and you will have your answer. In case it is not recognized on other devices, you’re able to modify the SIM card.

Try another SIM card on your Oppo

If perhaps the two previous steps do not give anything, it is actually necessary to test another SIM card to find out in the event that the issue originates from the card. In fact, in the event that other SIM card work on the Oppo, it is actually because the issue originates from the card. Otherwise, it is actually at the level of the smartphone that we will have to look.

Verify that your Oppo is not Simlocker

When you have tried a lot of SIM cards on the Oppo and none are recognized, the smartphone could be Simlocker. This means that the Oppo will recognize simply the SIM card of a specific operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the net that can do that.

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

This part mainly concerns the people who root the Oppo to install a ROM that is not original. If perhaps this is actually what you have carried out, be aware that the unrecognized SIM card issue is quite common after installing fresh ROMs. We recommend that you reinstall an original ROM and re-test it.

If perhaps nothing works

If perhaps all the above solutions do not work, we advise you to bring your Oppo and the SIM card back to 1 of your operator’s shops.