You have just acquired an Lenovo ZUK Z2 and when you turn it on, it displays the following error text: SIM card not recognized. At times the Lenovo ZUK Z2 does not recognize the SIM card and displays this message. In this case, it is not necessarily important to bring the Lenovo ZUK Z2 directly back. In fact, there are many methods to solve this trouble. We will consequently see in this article, what are the stuff to do and check to ensure that the SIM card is recognized on your Lenovo ZUK Z2.
What to do when ever the SIM card is not recognized on my Lenovo ZUK Z2
If the SIM card is not recognized on your Lenovo ZUK Z2, below is a list of stuff that can help you determine the source of the trouble, see repairing the trouble.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Lenovo ZUK Z2 is to wash it up. In truth, it may possibly happen that dirt partially prevents the contact between the SIM card and the mobile. 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 Lenovo ZUK Z2
At times the trouble may possibly be caused by the location of the SIM card. In truth, it often happens that small 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 Lenovo ZUK Z2 from reading the SIM card. To solve this trouble, 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 another phone
To find out if the trouble comes from the SIM card, you may test it on another phone and you will have your answer. When it is not recognized on other devices, you may change the SIM card.
Try another SIM card on your Lenovo ZUK Z2
If the two previous steps do not give anything, it is important to test another SIM card to find out whenever the trouble comes from the card. In fact, whenever other SIM card function on the Lenovo ZUK Z2, it is because the trouble comes from the card. Otherwise, it is at the level of the phone that we will have to look.
Check that your Lenovo ZUK Z2 is not Simlocker
When you have tried many SIM cards on the Lenovo ZUK Z2 and none are recognized, the phone may be Simlocker. It indicates that the Lenovo ZUK Z2 will recognize only the SIM card of a certain operator. In this case, 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 will not be caused by the ROM installed on the Lenovo ZUK Z2
This part mainly concerns the people who root the Lenovo ZUK Z2 to install a ROM that is not original. If this is actually what you have done, be aware that the unrecognized SIM card trouble 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 Lenovo ZUK Z2 and the SIM card back to 1 of your operator’s shops.
