Why does my android phone say invalid sim card?

After inserting the SIM card into your phone, you have often encountered the message that the SIM card is not recognized. But don’t worry, in this article from Technology Gadget Magazine, we will answer the question of Why does my android phone say invalid sim card  and provide you with the methods to solve this problem. Stay with us until the end of the article.

Why does my android phone say invalid sim card ?

This problem is one of the most common problems many people may face, but this problem has causes that we will mention below.

1. No network settings in automatic mode
2. Your SIM card is not registered
3. Your SIM card slot is faulty
4. Your phone must be flashed
5. The SIM card is defective
6. Your SIM card is not in place.

These 6 reasons are among the main problems that cause your SIM card not to be recognized, but the answer to the question, Why does my android phone say invalid sim card ? Some methods can solve your problem very quickly. And your phone will recognize the SIM card.

Turn the phone off and on again :

One of the primary ways to solve the problem of not recognizing the SIM card of the Samsung phone is restarting the phone. Although this is very simple, it works in many cases. In such cases, please turn off the phone for a while and turn it on again. For this method to be more effective, remove your SIM card and turn on the phone again. In such cases, you can also check the health of your SIM card by replacing the SIM card with another SIM card. If your phone has two SIM cards, change the place of the SIM cards to ensure that the slot is healthy.

Use a valid ROM:

Flashing the phone or replacing the ROM can be done for different reasons. These actions can lead to not recognizing the SIM card of the Samsung phone. After flashing the phone or replacing the phone’s ROM and installing a new ROM, the phone’s serial number, identified by the IMEI name, will be deleted. By erasing the IMEI, it is possible that the phone will not read the SIM card and have problems. Our recommendation is to use valid ROMs when replacing the phone ROM.

Adjust network settings manually:

One of the reasons that can cause the SIM card not to be read in the phone is that the network is not set automatically. In such cases, adjust the network manually. To do this, go to the network settings or Network Connection section. If you are using a phone with multiple SIM cards, select the type of network after choosing the desired SIM card in the Network mode section. There is another way to answer the question of Why does my android phone say invalid sim card , by trying this method, You increase your chances of fixing your problem.

Failure to read the Samsung mobile SIM card if it is not registered:

One of the main problems with not recognizing the SIM card is not being registered. Not recognizing the SIM card of the Samsung phone is very common in phones that are illegally and smuggled into the market. The serial numbers of these phones are not legally registered in telecommunication, and therefore these SIM cards will not work. Mobile operators do not provide services to SIM cards of unregistered phones. To make sure your phone is legit, match the serial number on the box with the serial number engraved under the battery.

Result:

Sometimes you face annoying problems. One of these problems is not recognizing the SIM card in the phone. In this article from Technology Gadget Magazine we have answered the question of why does my android phone say invalid sim card and we have shared with you the methods for solving this issue. If you know another method, please tell us in the comments section.