The SIM card in mobile phones
The SIM card in English is Subscriber Identity Form and in Spanish, Subscriber Identification Form. It's a smart card which can be removed from our cell phones and HSPA or LTE modems. It connects to the device via a reader slot or a SIM reader. These cards securely store the subscriber's service key.
It can be identified to the network, in this way it is possible to change the customer's subscription from one terminal to another simply by changing the card.
When a mobile phone does not have a SIM, it is as if we have a car, but we do not have a key. We cannot use them as we would like. So the SIM cards there provide the necessary access to enjoy our mobile phone.
In GSM networks, the use of the SIM card is mandatory. The typical SIM card contains little memory between 2-3 KB. Which is used directly from the mobile. It is becoming more and more common for manufacturers to reduce the size of their SIM cards.
They have reduced the size to make the devices thinner and save space in the case. The extra space is used for other components, such as a larger battery. SIM cards are available in four formats: Standard SIM, Mini SIM, Micro SIM and Nano SIM.
In some cases, this size reduction forces us to cut a SIM card in MicroSIM or nano in a simple way; although it will get better and better, change your SIM card with your carrier. Since currently, the plastic of the SIM cards is pre-cut for the different sizes.
How to insert the SIM card in Xiaomi mobile phones
If you plan to insert a SIM card that you haven't used for a long time, you may need to know how to activate a previously inactive chip or SIM card; then you can proceed to insert it into your Xiaomi mobile phone.
It is very easy to insert the SIM in Xiaomi mobile phones, but we remind you that i components you are going to handle are delicate. Care must be taken so that no objects are damaged.
To insert the SIM card you need to follow the following steps:
- You need to locate the key that came with your mobile phone Xiaomian, it is a very small tool.
- Keep your SIM card handy.
- The mobile phone must be turned off to perform this procedure.
- Keep your cell phone nearby.
- On the left side of the mobile you can see a small hole. In this hole you will insert the wrench or tool. A little pressure has to be applied, you just have to be careful not to break it.
- A click will be heard when applying pressure with the wrench or tool. This sound will indicate that the SIM tray is ready to be removed.
- When you proceed to take out the SIM card tray, you can see that there are two spaces. You need to identify where it says SIM 1 and place the card there.
- Verify that the SIM card is in the correct position and reinsert the SIM card tray.
- When the tray has clicked into place, you will hear the click again, indicating that it has been placed correctly.
- After inserting the SIM card, turn your Xiaomi mobile back on. Check that it has been read correctly from the mobile phone.
This way you will be able to insert the SIM card in your Xiaomi. If your phone is new, the next thing to do is to install Google Play + Play Services on your Xiaomi mobile; so you can fully enjoy all your favorite games and applications.
