Umidigi Z2: Unrecognized SIM card

You have just purchased an Umidigi Z2 and when you turn it on, it displays the following error text message: SIM card not recognized. Oftentimes the Umidigi Z2 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily necessary to bring the Umidigi Z2 directly back. Certainly, there are several methods to solve this issue. We will consequently see in this tuto, what are the stuff to do and verify to ensure that the SIM card is recognized on your Umidigi Z2.unrecognized-sim-card-umidigi-z2

What to do when ever the SIM card is not recognized on my Umidigi Z2

In the event that the SIM card is not recognized on your Umidigi Z2, below is a list of stuff that will help you discover 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 Umidigi Z2 is to clean it up. In fact, it might happen that dirt partially prevents the contact between the SIM card and the cellphone. 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 Umidigi Z2

Oftentimes the issue might come 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 Umidigi Z2 from reading the SIM card. To solve 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 mobile phone

To find out if the issue originates from the SIM card, you may test it on another 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 Umidigi Z2

In the event that the two previous steps do not give anything, it is actually necessary to test another SIM card to find out if the issue originates from the card. Certainly, if other SIM card work on the Umidigi Z2, it is actually because the issue originates from the card. Otherwise, it is actually at the level of the mobile phone that we will have to look.

Check that your Umidigi Z2 is not Simlocker

In case you have tried several SIM cards on the Umidigi Z2 and non-e are recognized, the mobile phone could be Simlocker. This implies that the Umidigi Z2 will recognize only 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 will do that.

Check that the problem doesn’t come from the ROM installed on the Umidigi Z2

This part mainly concerns the people who root the Umidigi Z2 to install a ROM that is not initial. In the event that this is actually what you have carried out, be aware that the unrecognized SIM card issue is quite common after setting up new ROMs. We advise that you reinstall an initial 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 Umidigi Z2 and the SIM card back to 1 of your operator’s shops.