Are you having this problem? Find out what is happening with the chip.
Cell phones that don't recognize the SIM card can cause problems for Android or iPhone (iOS) smartphone users. The reasons range from simple recognition failures to operator blocking. However, in some cases, there are easy ways to fix the problem. The procedures are recommended by several manufacturers and can be used with most operating systems. If this is not enough, you may need technical assistance so that a correct diagnosis can be made. Keep reading and find out what to do.
Check the tray
In modern smartphones, the SIM card is placed in a tray on the side of the smartphone. In this case, there is a possibility that the SIM card will not be recognized due to incorrect installation or damage. To do this, make sure that the trays loaded in the device are the original ones, as the models will not fit correctly if they are different. Remove the tray and make sure it is completely closed without putting it back in the phone.
Pay attention to the size
Current SIM cards come in three sizes known as mini, micro, and nano. Depending on the model, the size used is different, and if damaged, the model used may not fit. To resolve this issue, check whether the SIM card fits snugly in the intended location without running out of space or being larger. If not, check the size required for your device.
Another problem with SIM cards is the habit of cutting a used one to fit. If the procedure is not done correctly, the SIM card may be damaged due to incorrect cutting. In this case, you will need to go to the carrier's store and have the SIM card replaced with the correct size.
Check if it is blocked
For example, if you have a prepaid line, your SIM card may be blocked for a number of reasons, such as non-payment of bills, suspicion of fraud or lack of recent charges. In this case, the SIM card holder must unblock the SIM card by contacting the operator through a call center or physical store whenever possible.
See the sign
Areas far from major centers may have some network coverage gaps. According to Anatel, telephone line coverage should reach at least 80% in urban areas, but even in these areas there is a risk of shaded areas where the signal does not reach due to obstructions that affect the connection between the cell phone and the nearest antenna.
To find out if a carrier serves your region, visit the company's website and check the service area. Anatel periodically monitors compliance, but it is important to test your connection. The absence of a signal may indicate that it is time to change carriers.
Pay attention to updates
If the chip is not recognized even after a system update, it is likely that the software version is faulty. There are several options for resolving conflicts, including device formatting. Another option is to downgrade, that is, reinstall a version prior to the updated version, returning the device to a system without a chip.
IMEI Blocking
Lost or stolen phones may have been requested by their owners to blocking your IMEI, so others cannot use them. Users can check if this is the problem by following the steps below.
- Take your phone and type *#06# to find your device's IMEI code. If it's a dual SIM device, two numbers will appear on the screen.
- Access the website consultaaparelhoimpedido.com.br and click on the option “Consultar IMEI”/”Procurar IMEI”
- Enter the IMEI code found in step 1 in the field and fill in the characters shown in the security check below. Then click the “Contact Us” button.
- The device status is displayed in the data presentation. If it is not registered in the database, it means that the IMEI is working normally. However, if the IMEI is blocked, the line owner must contact the operator to unblock it.
Restart your phone
The good old trick of turning your smartphone off and on may also work at this point. Some transient errors may cause the SIM card to not be recognized, which may result in signal loss. In this case, restarting your device may fix some issues.
