Caterpillar CAT B25: Unrecognized SIM card

You have just purchased an Caterpillar CAT B25 and when you turn it on, it displays the following error message: SIM card not recognized. From time to time the Caterpillar CAT B25 does not recognize the SIM card and displays this message. In this circumstance, it is not necessarily important to bring the Caterpillar CAT B25 directly back. In truth, there are a lot of methods to solve this problem. We will for that reason discover in this content, what are the stuff to do and check to ensure that the SIM card is recognized on your Caterpillar CAT B25.unrecognized-sim-card-Caterpillar-CAT-B25

What to do when the SIM card is not recognized on my Caterpillar CAT B25

In the event that the SIM card is not recognized on your Caterpillar CAT B25, below is a list of stuff that may help you determine the source of the problem, discover repairing the problem.

Clean SIM card

One of the first stuff to do if the SIM card is not recognized on your Caterpillar CAT B25 is to clean it up. In fact, it may happen that dirt partially prevents the contact between the SIM card and the phone. To clean 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 Caterpillar CAT B25

From time to time the problem may originate from the location of the SIM card. In fact, it often occurs 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 Caterpillar CAT B25 from reading the SIM card. To solve this problem, you just simply need 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 comes 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 modify the SIM card.

Try another SIM card on your Caterpillar CAT B25

In the event that the two previous steps do not give anything, it’s important to test a different SIM card to find out in the event that the problem comes from the card. In truth, in the event that other SIM card function on the Caterpillar CAT B25, it’s because the problem comes from the card. Otherwise, it’s at the level of the phone that we will have to look.

Confirm that your Caterpillar CAT B25 is not Simlocker

When you have tried a lot of SIM cards on the Caterpillar CAT B25 and none are recognized, the phone might be Simlocker. This means that the Caterpillar CAT B25 will recognize just the SIM card of a specific operator. In this circumstance, you have to unlock it. You will find without a hassle a lot of offer on the web that may do that.

Check that the problem does not originate from the ROM installed on the Caterpillar CAT B25

This part mainly concerns the people who root the Caterpillar CAT B25 to install a ROM that is not original. In the event that this is actually what you have carried out, be aware that the unrecognized SIM card problem is quite common after setting up new ROMs. We 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 recommend you to bring your Caterpillar CAT B25 and the SIM card back to one of your operator’s shops.