You have just purchased an HTC Desire 21 pro and when you turn it on, it displays the following error message: SIM card not recognized. Occasionally the HTC Desire 21 pro does not recognize the SIM card and displays this message. In this case, it is not necessarily important to bring the HTC Desire 21 pro directly back. Certainly, there are a lot of methods to solve this problem. We will for that reason see in this content, what are the stuff to do and check so that the SIM card is recognized on your HTC Desire 21 pro.
What to do when ever the SIM card is not recognized on my HTC Desire 21 pro
In the event that the SIM card is not recognized on your HTC Desire 21 pro, below is a list of stuff that will help you identify the source of the problem, see repairing the problem.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your HTC Desire 21 pro is to clean it up. Actually, it may possibly 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 tracking of the SIM card on your HTC Desire 21 pro
Occasionally the problem may possibly be caused by the tracking of the SIM card. Actually, 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 HTC Desire 21 pro from reading the SIM card. To solve this problem, 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 a different smartphone
To find out if the problem originates from the SIM card, you can test it on a different phone and you will have your answer. In case it is not recognized on other devices, you can change the SIM card.
Try another SIM card on your HTC Desire 21 pro
In the event that the two previous steps do not give anything, it truly is important to test a different SIM card to find out in the event that the problem originates from the card. Certainly, in the event that other SIM card work on the HTC Desire 21 pro, it truly is because the problem originates from the card. Otherwise, it truly is at the level of the smartphone that we will have to look.
Confirm that your HTC Desire 21 pro is not Simlocker
When you have tried a lot of SIM cards on the HTC Desire 21 pro and none are recognized, the smartphone could be Simlocker. It indicates that the HTC Desire 21 pro will recognize simply the SIM card of a certain operator. In this case, you have to unlock it. You will find without a hassle a lot of provide on the net that will do that.
Check that the problem doesn’t be caused by the ROM installed on the HTC Desire 21 pro
This part mainly concerns the people who root the HTC Desire 21 pro 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 problem is quite common after setting up fresh ROMs. We advise 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 recommend you to bring your HTC Desire 21 pro and the SIM card back to 1 of your operator’s shops.
