You have just bought an Lenovo A390T and when you turn it on, it displays the following error text message: SIM card not recognized. Oftentimes the Lenovo A390T does not recognize the SIM card and displays this message. In this case, it is not necessarily important to bring the Lenovo A390T directly back. Certainly, there are a lot of tricks to fix this trouble. We will consequently observe in this article, what are the stuff to do and confirm in order that the SIM card is recognized on your Lenovo A390T.
What to do when the SIM card is not recognized on my Lenovo A390T
In cases where the SIM card is not recognized on your Lenovo A390T, below is a list of stuff that may help you determine the source of the trouble, observe repairing the trouble.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your Lenovo A390T is to clean 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 A390T
Oftentimes the trouble may possibly be caused by the location of the SIM card. In truth, it often happens that little 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 Lenovo A390T from reading the SIM card. To fix this trouble, you simply have to thicken the SIM a little by gluing one or two pieces of tape at the back.
Test the SIM card on another smartphone
To find out if the trouble originates from the SIM card, you can actually test it on another phone and you will have your answer. In case it is not recognized on other devices, you can actually change the SIM card.
Try another SIM card on your Lenovo A390T
In cases where the two previous steps do not give anything, it’s important to test another SIM card to find out if perhaps the trouble originates from the card. Certainly, if perhaps other SIM card work on the Lenovo A390T, it’s because the trouble originates from the card. Otherwise, it’s at the level of the smartphone that we will have to look.
Confirm that your Lenovo A390T is not Simlocker
If you have tried a lot of SIM cards on the Lenovo A390T and none are recognized, the smartphone may be Simlocker. This means that the Lenovo A390T will recognize simply the SIM card of a specific operator. In this case, you have to unlock it. You will find without a hassle a lot of offer on the internet that may do that.
Check that the problem doesn’t be caused by the ROM installed on the Lenovo A390T
This part mainly concerns the people who root the Lenovo A390T to install a ROM that is not original. In cases where this is actually what you have carried out, be aware that the unrecognized SIM card trouble is quite common after installing new ROMs. We recommend that you reinstall an original ROM and re-test it.
In cases where nothing functions
In cases where all the above solutions do not work, we recommend you to bring your Lenovo A390T and the SIM card back to one of your operator’s shops.
