How do you put it in? SIM-Map in Xiaomi: step-by-step instructions

Modern smartphones Xiaomi is famous for its functionality, but the initial configuration of the device often begins with the most basic action – the installation of a communication module. Many users who switch from notebook phones or models of other brands may find it difficult to remove the tray, as manufacturers constantly change the design of the devices. SIM-map.

In this article, we will discuss in detail all the nuances of installing a SIM card in Xiaomi, Redmi and POCO devices. We will look at the different types of slots, ways to extract the tray and analyze the typical mistakes that inexperienced users make when trying to activate mobile communication.

You don't have to be a technician to do this, you just have to look at your smartphone and follow the guidelines, and it's important to understand that the design of the tray depends on the model and the year it's made, so there's no one-size-fits-all method.

Definition of tray type and preparation of tools

Before you start physically affecting the body of your smartphone, you need to visually inspect the ends of the device. In the vast majority of modern Xiaomi models, the SIM card tray is located on the lower or upper end of the case, and this is where you will see a narrow slot designed for a special key.

There are two main types of trays used in the Chinese giant's products: the first type is a classic retractable slot that is extracted using a paper clip or a special needle. The second type, which was found in older models or specific versions, is a retractable mechanism integrated into a side frame, where the SIM card is inserted without removing the entire tray, but the modern Redmi and Mi is dominated by the former.

You'll need a tool to work with, which comes with the phone, which looks like a small, oval-shaped metal clip, and if the original key is lost, you can use a regular stationery clip to straighten one of its ends, or a thin needle, and the main requirement for the tool is that it's thin enough to go in the hole, and strong enough to withstand pressure.

⚠️ Warning: Never use thick objects such as toothpicks (they may break inside the hole) or knives as you risk damaging the spring mechanism inside the smartphone case.

It's also important to determine whether your phone supports a memory card, and that's what the tray configuration depends on. In budget and mid-budget segments, there's often a combined slot where one of the seats can be used for either a second SIM card or a MicroSD drive.

The process of extracting the tray for SIM-map

The process of removing the tray is a critical step, and the wrong actions can lead to scratches on the body or to a breakdown of the mechanism, and find a small circular hole on the end of the device next to the elongated tray, and that's where you need to insert the tool.

Take a key or a paper clip and place it perpendicular to the end of the smartphone. Make sure you hold the tool straight, without skewing. Carefully but with a confident push, squeeze the tool into the hole. You should feel a slight click or spring resistance, and then the tray will move out a few millimeters.

If the tray is not retracted, don't use excessive force. Try to change the angle of the needle slightly or push a little harder, but control the effort. In some Xiaomi models, the tray can be pressed tightly enough due to the tight assembly of the body.

Once the tray has appeared from the case, gently tuck it with a nail or tweezers and remove it completely. Place the tray on a light surface so as not to lose small details and better see the orientation of the contacts.

Orientation and installation SIM-cardboard

The most common question users ask is which side to put the SIM card, which is usually engraving in the silhouette of the card on the tray itself, which indicates the correct orientation, but this marking is often barely noticeable or absent in some revisions.

The standard for modern smartphones is the Nano-SIM format, the smallest card size, almost the size of a chip. If you have an old-format card (Mini or Micro), it must be replaced in the communication salon or carefully trimmed into a special form, although the latter option is not recommended because of the risk of damaging the chip.

The rule of installation is that the card is placed in the deepening of the tray so that the bevelled angle coincides with the beveled angle of the notch in the tray. Golden contacts should look down (to the inside of the tray, if you look from above, or up, if the tray is turned over by contacts to you - depends on the model, but most often the contacts look down to the "back" of the tray).

• 📱 Find a notch on the tray under Nano-SIM, it has the shape of a rectangle with one cut angle.
• 🔍 Compare the bevelled corner of your SIM card to the beveled corner in the tray – they should match perfectly.
• 👇 Make sure the golden contacts on the map are pointing downward (towards the plastic tray base).
• 🔒 Carefully press the card with your finger so that it is fixed in the recess and does not dangle.

In hybrid slot models, the fixation mechanism is often used, the card can be inserted into the slot before clicking or held in a frame. Be careful: if you insert a memory card instead of the second sim, the second number will not work.

Features of installation in a model with two SIM-cards

Most Xiaomi and Redmi devices support two SIM cards at the same time, implemented through a tray with two separate card spaces, depending on the model, these seats can be located on one side of the tray (back to back) or on different sides (bilateral tray).

The classic tray is a plastic frame with two notches. The first SIM card (SIM 1) is usually installed in a larger hole or marked with a number 1, the second (SIM 2) in the next one. When installing two cards, it is important not to confuse them with places if you plan to assign a specific SIM for mobile Internet by default.

And there are two-way tray models, so you put the card on one side, the tray flips over, and the other card is inserted on the other side, and that requires more care so that you don't drop the cards when you manipulate them.

After you have both cards, you can gently insert the tray back into the case, and there's a caveat: you can only insert the tray with one side of the right one, and if you feel resistance, don't push, turn the tray over.

Installation of a microSD memory card with SIM

If your smartphone supports memory expansion but has a combined slot, you'll have to choose between two SIM cards or one SIM card plus a memory card. In these trays, one of the SIM card locations is physically occupied by MicroSD contacts.

The memory card is installed in a special recess, which is often next to or below the slot for the second SIM card.Memory card contacts also need to look down (or in the direction indicated on the tray diagram).The memory card is usually fixed tighter than the SIM card and may require little effort to install.

⚠️ Note: When using a combined slot, the memory card installation automatically disables the second slot. SIM-It's impossible to use two SIMs and a flash drive at the same time in these models.

There are models with a separate memory card slot located next to the SIM card slot. In this case, installing a flash drive does not affect the number of SIM cards available. Check the specification of your Xiaomi model on the official website to know exactly the configuration of the slots.

After installing the memory card and turning on the phone, the Android system will usually automatically recognize the new drive, and you may be asked to use it as a portable storage device or as part of internal memory (formatting for internal storage).

Inserting the tray back and primary activation

The final step is to get the tray back into the case, and take the tray with the cards installed and hold it to the hole in the end of the smartphone, and notice the tray profile: it must exactly repeat the shape of the hole.

If you're in the tray smoothly, if it's difficult to enter, you're inserting it with the wrong side (top-bottom or contact plastic) and don't use force to break the plastic guides inside the case.

The tray has to go in, flush with the body, and the characteristic click is not necessary, but you will feel that the movement has stopped, and then you can turn on the device.

When you turn on, the phone will ask the SIM cards, the carrier icons should appear on the screen in the status bar, and if the network is not catching, check if you have correctly set the cards with the contacts down and if they are flat in the tray.

Compatibility table and slot types

For the convenience of users, we have compiled a summary table that will help determine the type of slot in popular smartphone series, which will allow you to prepare the right tools and cards in the right format in advance.

The specific modification of your smartphone may vary depending on the region of sale, always check the configuration and design of the tray visually before starting the procedure.

Solution: The phone can't see SIM-map

There are situations when, after installation, the smartphone says "No SIM card" or "Put the SIM card in" and this can be caused by contact oxidation, software failure or defective card.

Try to wipe the gold contacts of the SIM card with a soft eraser or cloth soaked in alcohol. Make sure the card is not deformed. It is also worth trying to insert the SIM card into another slot (SIM 2 instead of SIM 1) to rule out the malfunction of the particular reader.

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Use an eraser to clean your contacts. A regular school eraser is great at removing oxides from gold contacts. SIM-cards, restoring contact.

If the problem is not solved, check the settings in the Settings menu. → SIM-Make sure the slots are activated, and in some cases, resetting the network settings or flashing the device helps, but these are extreme measures.

⚠️ Warning: If the phone doesn't see the SIM card after falling or getting moisture, don't try to charge the device.Let it dry or contact the service center, as the connector inside the phone may have oxidized.

A common reason is the use of SIM-These cards are hand-carved with scissors, and they may have uneven edges or a damaged chip, which leads to poor contact.

FAQ: Frequently Asked Questions

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Proper installation SIM-Make sure the contacts are clean, the Nano-SIM card is in the tray, smooth, and without distortion.