You have just purchased an CUBE1 G503 and when you turn it on, it displays the following error text: SIM card not recognized. At times the CUBE1 G503 does not recognize the SIM card and displays this message. In this case, it is not necessarily required to bring the CUBE1 G503 directly back. In fact, there are many tips to fix this problem. We will therefore find out in this content, what are the stuff to do and confirm to ensure the SIM card is recognized on your CUBE1 G503.
What to do when ever the SIM card is not recognized on my CUBE1 G503
In the event that the SIM card is not recognized on your CUBE1 G503, below is a list of stuff that will help you determine the source of the problem, find out repairing the problem.
Clean SIM card
One of the first stuff to do if the SIM card is not recognized on your CUBE1 G503 is to wash it up. In truth, it may 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 tracking of the SIM card on your CUBE1 G503
At times the problem may come from the tracking of the SIM card. In truth, it often occurs that tiny metal plugs that most of the time have to come in contact with the SIM card are a little relaxed. When this is the case, this prevents the CUBE1 G503 from reading the SIM card. To fix this problem, you just simply need to thicken the SIM a little by gluing 1 or two pieces of tape at the back.
Test the SIM card on another telephone
To find out if the problem originates from the SIM card, you can actually test it on another phone and you will have your answer. If it is not recognized on other devices, you can actually change the SIM card.
Try another SIM card on your CUBE1 G503
In the event that the two previous steps do not give anything, it is required to test another SIM card to find out in cases where the problem originates from the card. In fact, in cases where other SIM card function on the CUBE1 G503, it is because the problem originates from the card. Otherwise, it is at the level of the telephone that we will have to look.
Confirm that your CUBE1 G503 is not Simlocker
When you have tried many SIM cards on the CUBE1 G503 and none are recognized, the telephone could be Simlocker. It indicates that the CUBE1 G503 will recognize only 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 will do that.
Check that the problem does not come from the ROM installed on the CUBE1 G503
This part mainly concerns the people who root the CUBE1 G503 to install a ROM that is not initial. In the event that this is actually what you have completed, be aware that the unrecognized SIM card problem is quite common after installing new ROMs. We highly recommend that you reinstall an initial 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 CUBE1 G503 and the SIM card back to 1 of your operator’s shops.
