You have just acquired an uSUN 250 and when you turn it on, it displays the following error message: SIM card not recognized. Occasionally the uSUN 250 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily required to bring the uSUN 250 directly back. In truth, there are several techniques to fix this problem. We will consequently observe in this article, what are the things to do and confirm in order that the SIM card is recognized on your uSUN 250.
How to proceed when ever the SIM card is not recognized on my uSUN 250
In the event that the SIM card is not recognized on your uSUN 250, below is a list of things that may help you determine the source of the problem, observe repairing the problem.
Clean SIM card
One of the first things to do if the SIM card is not recognized on your uSUN 250 is to clean it up. Actually, it may 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 uSUN 250
Occasionally the problem may originate from 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 uSUN 250 from reading the SIM card. To fix this problem, you just simply have to thicken the SIM a little by gluing one or two pieces of tape at the back.
Test the SIM card on a different phone
To find out if the problem originates from the SIM card, you may test it on a different phone and you will have your answer. If it is not recognized on other devices, you may modify the SIM card.
Try another SIM card on your uSUN 250
In the event that the two previous steps do not give anything, it truly is required to test a different SIM card to find out in the event that the problem originates from the card. In truth, in the event that other SIM card function on the uSUN 250, it truly is because the problem originates from the card. Otherwise, it truly is at the level of the phone that we will have to look.
Verify that your uSUN 250 is not Simlocker
If you have tried several SIM cards on the uSUN 250 and none are recognized, the phone could be Simlocker. This means that the uSUN 250 will recognize only the SIM card of a certain operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the net that may do that.
Check that the problem doesn’t originate from the ROM installed on the uSUN 250
This part mainly concerns the people who root the uSUN 250 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 installing fresh ROMs. We highly recommend that you reinstall an original ROM and re-test it.
In the event that nothing functions
In the event that all the above solutions do not work, we advise you to bring your uSUN 250 and the SIM card back to one of your operator’s shops.
