Umidigi One: Unrecognized SIM card

You have just bought an Umidigi One and when you turn it on, it displays the following error message: SIM card not recognized. From time to time the Umidigi One does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the Umidigi One directly back. In fact, there are several tips to fix this issue. We will consequently find out in this tuto, what are the things to do and confirm to ensure that the SIM card is recognized on your Umidigi One.unrecognized-sim-card-umidigi-one

How to proceed when the SIM card is not recognized on my Umidigi One

If the SIM card is not recognized on your Umidigi One, below is a list of things that may help you determine the source of the issue, find out repairing the issue.

Clean SIM card

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

From time to time the issue might originate from the location of the SIM card. In fact, it often occurs that tiny metal plugs that normally have to come in contact with the SIM card are a little bit relaxed. When this is the case, this prevents the Umidigi One from reading the SIM card. To fix this issue, you just 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 cellphone

To find out if the issue originates 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 Umidigi One

If the two previous steps do not give anything, it can be 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 work on the Umidigi One, it can be because the issue originates from the card. Otherwise, it can be at the level of the cellphone that we will have to look.

Verify that your Umidigi One is not Simlocker

When you have tried several SIM cards on the Umidigi One and none are recognized, the cellphone could possibly be Simlocker. This implies that the Umidigi One 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 net that may do that.

Check that the problem does not originate from the ROM installed on the Umidigi One

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

If nothing works

If all the above solutions do not work, we recommend you to bring your Umidigi One and the SIM card back to one of your operator’s shops.