How to get a sim from Xiaomi key: a guide

Change of operator or installation of a new SIM-Cards are a standard procedure that every smartphone owner faces, but in modern Xiaomi models, the card tray is often hidden in the end of the case and requires the use of a special tool. If there is no factory paper clip at hand, many users get lost, not knowing how to replace a thin metal pin so as not to damage the device.

Removing a memory card or communication module requires care, because the mechanism of Micro-SIM or Nano-SIM is quite fragile. The wrong impact can lead to jamming of the tray or damage to contacts inside the slot. In this article, we will discuss in detail how to get a sim from Xiaomi with a key, what tools are suitable for replacing a regular tool and what to do if the tray does not open.

Before you start mechanically, you need to make sure you correctly identify the location of the slot. In most modern Xiaomi models, such as the Redmi Note or the Mi series, the hole is on the lower or upper edge of the case. It is important not to confuse the noise reduction microphone with the hole to extract, as a puncture of the microphone will lead to serious problems with the sound.

Finding a hole and preparing a tool

The first step is to visually inspect the smartphone body. The tray extraction hole is a circular micro-puncture about 1 mm in diameter. It often has a schematic card icon or arrow next to it indicating the direction of movement. In some models, such as the Xiaomi Mi 9 or Redmi Note 10, the slot is combined with space for a microSD memory card, which requires special care when installing.

If the winding key is lost, it can be replaced with a paper clip that needs to be straightened beforehand, and a thin needle from the sewing set, a pin or even a earring with a thin pin will work, and the main requirement for the tool is that it must be thin enough to enter the hole, but strong enough to withstand the pressure without bending.

Do not use toothpicks, matches or sharpened wooden sticks for this procedure. The tree can split inside the mechanism, and it will be extremely difficult to remove the residues without disassembling the phone. Metal objects are preferable, but make sure that their tip is not too sharp to scratch the body or finger during operation.

⚠️ Warning: Never insert the tool into the hole at an angle.The movement must be strictly perpendicular to the edge of the body, otherwise you risk slipping and scratching the screen or back cover.

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If there are no metal objects at hand, and the SIM needs to be taken out urgently, try using a thin blade from nail scissors, but act with extreme caution so as not to get hurt.

Technique for retrieving a SIM card tray

The extraction process is simple, but requires the right force technique: Take a prepared tool (key, paper clip, or needle) and insert it into the hole, put the smartphone with the back in your palm, or put it on a hard, flat surface, prelaying the soft fabric so that the device does not slip.

Press the tool with a confident but not overly strong movement. You should feel a slight click or elastic resistance, after which the tray will push out 1-2 millimeters. This is enough to grab its edge with your fingers. In moisture-proof models such as the Xiaomi 12 Pro, the mechanism can be tighter, so the effort will require a little more.

Once the tray appears from the case, gently pull it over yourself. Don't pull sharply so as not to damage the contacts of the card or the tray itself. If the tray has a combined design (for two sims and a memory card), make sure you understand which segment to insert when you reassemble.

Sometimes users are faced with a situation where the tray does not leave even when pressed hard. This may indicate that the mechanism is jammed, or you are pressing into the wrong hole. Check again if the puncture you choose is a microphone. If you are sure of the choice, try wiggling the tool slightly from side to side without removing it to find the correct position of the retainer.

What to do if the tray is jammed

It's not common for a tray to get stuck inside the body, but it can cause panic, most often because the tray itself is deformed, dust gets inside the machine, or if you use a tool that's too blunt to reach the lock lever. If a standard press doesn't help, don't use brute force.

Try using a thinner tool, like a syringe needle (necessarily clean and dry) and insert it deeper than a regular paper clip to reach the end of the channel, sometimes you need to press two points at once inside the hole if the mechanism is double, and you can also try to tap the end of the phone slightly on the palm of your hand when you press it so that the vibration helps to release the lock.

⚠️ Warning: If the tray fails after a few careful attempts, stop the exposure. Continued pressure may cause the internal mechanism to break or damage the motherboard.

In rare cases, the tray can be blocked software in some specific software modifications, although this is not typical for mechanical extraction. If you suspect that the problem is physical damage (for example, the phone fell), it is better to contact the service center, self-opening the case in this case will deprive you of warranty.

Comparison of tray types in different Xiaomi models

Slot design for SIM-The card may vary depending on the year of release and price segment of the device. Understanding the type of your tray will help avoid errors when installing the card back.

Note the combined tray models, which don't have two SIM cards and a memory card at the same time, and you have to choose between two lines or one line and a memory extension. The Poco series often features a full-fledged triple slot, which is a big advantage for users who store a lot of media.

When installing the card, make sure that the cut corner of the Nano-SIM matches the shape of the tray. The card should lie tight, without backlashes. If the card is dangling, it may be cropped incorrectly or the tray is damaged. In such cases, the use of adapters is not recommended, as they can get stuck inside the phone.

Data security when extracting SIM

While SIM card extraction is a physical process, it has implications for the software part of the device. Xiaomi's current smartphones run on Android-based shells. MIUI or HyperOS, which responds to card changes. SIM-The card when the phone is on can restart or issue a network error message, which is normal behavior.

It is recommended to remove and install a memory card and SIM-This prevents possible software failures, loss of unsaved contacts (if stored on a SIM) or damage to the memory card file system. Although modern systems have protection against hot connections, the risk is minimal, but it exists.

If you change SIM-card to a new one after switching on the phone may require input PIN-Make sure you remember this code or have it. PUK-Operator code, in the security settings. MIUI There's a locking function SIM-A card that asks for a password every time you reboot your phone.

⚠️ Note: Do not remove the microSD card while writing data (e.g. copying a photo or installing an application) this can lead to irreversible loss of information.

Frequent User Errors

Many users make the typical mistakes of trying to get a Sim from Xiaomi. One of the most common is using excessive force. The mechanism does not require the efforts of the boxer; if the tray does not come out, then you are doing something wrong. Another mistake is trying to tuck the tray with a nail or a knife from the outside, which leads to chips on the frame of the body.

It's also common to ignore the orientation of the map, and there are special indentations in the tray that exactly replicate the outline of the map, and if the card doesn't fit perfectly flat, don't push it, turn it over or turn it, and if you put the card upside down, you can short-circuit the contacts when you turn it on.

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The main mistake is to try to replace a special key with a thick object, using only thin metal tools (clip, needle) so as not to widen the hole and damage the lock.

Remember to clean the SIM card contacts before installing. Fat spots from your fingers or dust can cause a bad signal or periodic network loss. Wipe the golden contacts with soft dry cloth. Also check if there is any pile or dust in the phone slot that may have hit there before.

Questions and Answers (FAQ)