Vivo Z3x: Unrecognized SIM card

You have just bought an Vivo Z3x and when you turn it on, it displays the following error text: SIM card not recognized. Oftentimes the Vivo Z3x does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the Vivo Z3x directly back. In truth, there are a lot of techniques to fix this issue. We will therefore see in this tuto, what are the stuff to do and check to ensure the SIM card is recognized on your Vivo Z3x.unrecognized-sim-card-Vivo-Z3x

How to proceed when ever the SIM card is not recognized on my Vivo Z3x

In the event that the SIM card is not recognized on your Vivo Z3x, below is a list of stuff that can help you determine the source of the issue, see repairing the issue.

Clean SIM card

One of the first stuff to do if the SIM card is not recognized on your Vivo Z3x is to clean it up. In fact, it may happen that dirt partially prevents the contact between the SIM card and the smartphone. 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 Vivo Z3x

Oftentimes the issue may come from the location of the SIM card. In fact, it often occurs that little metal plugs that most of the time have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the Vivo Z3x from reading the SIM card. To fix this issue, you simply 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 issue comes from the SIM card, you may test it on a different phone and you will have your answer. In case it is not recognized on other devices, you may change the SIM card.

Try another SIM card on your Vivo Z3x

In the event that the two previous steps do not give anything, it’s important to test a different SIM card to find out in cases where the issue comes from the card. In truth, in cases where other SIM card work on the Vivo Z3x, it’s because the issue comes from the card. Otherwise, it’s at the level of the mobile phone that we will have to look.

Check that your Vivo Z3x is not Simlocker

When you have tried a lot of SIM cards on the Vivo Z3x and non-e are recognized, the mobile phone could be Simlocker. This implies that the Vivo Z3x will recognize just 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 internet that can do that.

Check that the problem doesn’t come from the ROM installed on the Vivo Z3x

This part mainly concerns the people who root the Vivo Z3x to install a ROM that is not original. In the event that this is actually what you have done, be aware that the unrecognized SIM card issue is quite common after installing new ROMs. We highly recommend that you reinstall an original 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 Vivo Z3x and the SIM card back to one of your operator’s shops.