Oppo Reno 3: Unrecognized SIM card

You have just bought an Oppo Reno 3 and when you turn it on, it displays the following error text message: SIM card not recognized. Sometimes the Oppo Reno 3 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the Oppo Reno 3 directly back. In fact, there are a lot of tips to fix this issue. We will for that reason see in this tuto, what are the things to do and confirm to ensure the SIM card is recognized on your Oppo Reno 3.unrecognized-sim-card-Oppo-Reno-3

What to do when the SIM card is not recognized on my Oppo Reno 3

If the SIM card is not recognized on your Oppo Reno 3, below is a list of things that could help you discover the source of the issue, see repairing the issue.

Clean SIM card

One of the first things to do if the SIM card is not recognized on your Oppo Reno 3 is to clean it up. In fact, it may happen that dirt partially prevents the contact between the SIM card and the mobile phone. To wash 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 Reno 3

Sometimes the issue may sourced from the location of the SIM card. In fact, it often happens that tiny 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 Reno 3 from reading the SIM card. To fix this issue, you just have to thicken the SIM a little by gluing 1 or two pieces of tape at the back.

Test the SIM card on a different cellphone

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

Try another SIM card on your Oppo Reno 3

If the two previous steps do not give anything, it is important to test a different SIM card to find out in the event that the issue originates from the card. In fact, in the event that other SIM card function on the Oppo Reno 3, it is because the issue originates from the card. Otherwise, it is at the level of the cellphone that we will have to look.

Verify that your Oppo Reno 3 is not Simlocker

In case you have tried a lot of SIM cards on the Oppo Reno 3 and non-e are recognized, the cellphone could possibly be Simlocker. This means that the Oppo Reno 3 will recognize simply 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 could do that.

Check that the problem does not sourced from the ROM installed on the Oppo Reno 3

This part mainly concerns the people who root the Oppo Reno 3 to install a ROM that is not original. If this is actually what you have done, be aware that the unrecognized SIM card issue is quite common after installing new ROMs. We suggest that you reinstall an original ROM and re-test it.

If nothing works

If all the above solutions do not work, we recommend you to bring your Oppo Reno 3 and the SIM card back to 1 of your operator’s shops.