When you need to replace your SIM card or install a memory card, and you don’t have a special key-clip on hand, many smartphone owners know. Xiaomi and Redmi complete their devices with miniature metal extractors that tend to get lost at the most inopportune moment, at which point users often panic, fearing damage to the case or locking mechanism of the tray.
However, you can open a SIM card slot using ordinary household items that are found in every home, the main thing is to understand the design of the mechanism and not to apply excessive efforts that can lead to failure. In this article, we will discuss in detail the safe methods of extracting the tray, and also discuss what you can not do to avoid sending the device to the service center.
Before you start looking for an alternative tool, it's important to assess the risks. The extraction mechanism on modern smartphones is quite fragile, and using inappropriate items can shift the internal contacts or scratch the frame of the case. Accuracy and accuracy are your main allies in this process.
Why the key is lost and how to replace it
The standard SIM card extraction key is a thin metal rod, often attached to a plastic base, and its diameter is matched to press a hidden micro-switch inside the hole without damaging the surrounding components. When the original tool is lost, the user's task is to find an object of similar thickness and hardness.
Many people mistakenly believe that any thin needle or pin will do, but objects that are too thin can slip off or, worse, get stuck inside the mechanism, locking it permanently. The ideal replacement should be strong enough to withstand the pressure of the finger, and have a blunt tip so as not to scratch the inner walls.
It's also important to consider the material that makes your smartphone, and if you have a glass or ceramic case, the risk of chipping when you handle it carelessly increases, and the metal frames are more stable, but they're also easy to scratch with the sharp edge of an improvised tool.
Safe alternatives to factory paperclip
There are several proven items that can be an effective key replacement, and the first one on the list is often called a regular paper clip, which is a classic version, but it requires pre-preparedness, and you need to unwind the paper clip so that you get a straight section about 2-3 centimeters long.
The edge of the unbended paper clip can be sharp, so it's best to dull it slightly against a hard surface or sandpaper if you have one at hand. Put a straight end into the hole and press perpendicular to the body. If the tray doesn't go out right away, try swaying the paper clip, the pressure point, slightly.
- 📎 Stationery paperclip is the most affordable option, but requires careful extension and check for the presence of burrs.
- 💉 The needle from the syringe is ideal diameter and strength, but requires caution due to the severity and risk of injury.
- 💎 Carnation earring – often has the right leg thickness, but make sure the decorative element does not interfere with the grip.
- 📏 Metal ruler – if it is thin enough, you can use the edge, but there is a high risk of scratching the body.
⚠️ Warning: Never use wooden toothpicks. They break easily inside the hole, and it will be extremely difficult to remove the debris without disassembling the phone, which will lead to the slot locking permanently.
Sewing needles are another option, but they are often too thin for Xiaomi's mechanism. If you do decide to use a needle, make sure that its diameter matches the hole. A too thin needle can simply fall deeper than it should be without activating the push mechanism.
Categorically Prohibited Instruments
The desire to solve a problem quickly sometimes leads to the use of items that are guaranteed to damage the device. Understanding what not to do is more important than knowing what methods are acceptable. Damage to internal components can cost more than just buying a new key or even repairing a service.
First of all, forget about knives, blades and any cutting objects. In addition to the high risk of cutting your finger, you are very likely to damage the plastic frame around the hole or, worse, pierce the battery if the hole is not located correctly.
☑️ Testing the tool before use
Also, you should not use drills or tools for wood carving. The mechanism of the sim tray is not designed to rotate or aggressive mechanical action. Any attempt to "unplug" the tray will lead to deformation of the guides.
- 🔪 Knives and blades – high risk of injury and damage to the body or battery.
- 🪚 Drills and file files - can irrevocably destroy the locking mechanism.
- 🖊️ Pen rods – plastic often gets stuck or crumbles inside the mechanism.
- 🔥 Heated items – can melt plastic tray or damage adhesive joints.
If you accidentally push an inappropriate object too deep and it's stuck, don't try to pull it out by force. This can cause contact breakage. In this situation, it's best to consult specialists who have microscopes and thin tweezers to extract foreign bodies.
Step-by-step instructions for removing the tray
The process of removing the tray requires calmness and the right angle of inclination of the tool. First turn off the smartphone. Although many modern devices support hot SIM card replacement, turning off the power eliminates the risk of short circuit or software errors when recognizing a new card.
Find a hole to extract. On most Xiaomi and Redmi models, it's located on the bottom or top end of the device. The hole is usually very small, so you might need good lighting or a magnifier. Make sure you don't confuse it with the microphone hole.
⚠️ Attention: The microphone hole is often protected by a grid. If you try to pierce the mesh with a tool, you damage the microphone. The SIM card hole always leads to the void to the mechanism and has no grid inside.
How to distinguish a SIM card hole from a microphone?
Take a tool that you've prepared (a paper clip, a needle) and insert it perpendicular to the surface of the body, you need to press it confidently, but without jerking. You need to feel a slight click or resistance, which will be replaced by the tray moving outwards. You don't need to push it to the end, just a little effort.
Once the tray appears 2-3 millimeters out of the case, remove the tool and tuck the tray with nails or tweezers with blunt ends. Sharp pulling can cause the SIM card to fly out and get lost. Carefully remove the tray completely.
Features of the design of different models Xiaomi
Different smartphone lines can have nuances in the layout and design of slots. The flagship models of the Mi and Xiaomi Number series often use a combined tray that fits two SIM cards or one SIM card and a microSD memory card. The budget Redmi and Poco series also follow this standard, but the quality of the mechanism can vary.
In some older models or specific versions for the Chinese market, the mechanism may be more tight. If standard force doesn't help, try slightly changing the angle of the tool. Sometimes the hole is shifted relative to the center of the mechanism due to the build features.
| Series of devices | Slot location | Type of tray | Features |
|---|---|---|---|
| Xiaomi Mi / Number | Lower end | Hybrid | Tight landing, need care. |
| Redmi Note | upper or lower end | Triple (2 SIM + SD) | Sensitive latch mechanism |
| Poco X / F | Lower end | Hybrid | Often, more effort is required. |
| Black Shark | Side end | Double SIM. | Specific location due to coolers |
It is worth noting that in some moisture-proof models (although Xiaomi has few of them), the mechanism can be further compacted. In such cases, the force should be greater, but the risk of damage to the seal is higher. If the tray does not respond after several attempts, it is better to stop.
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Lubricate the tip of the tool with a drop of silicone oil or even just rub it against the hair – this will reduce friction and help avoid scratches inside the hole.
What to do if the tray is jammed
There are situations where the tray is only partially removed and stuck, or you accidentally insert the tool too deep, blocking the mechanism, in which case panic is the worst advice, and trying to pull the tray with your fingers can lead to its breakage, because the plastic used in the trays is quite fragile.
If the tray sticks out a couple of millimeters, try using a thin tweezer, or even a piece of double-sided tape glued to a match, to grab the edges. The main thing is to pull evenly, without skewing, and skewing can cause the tray to jam dead.
⚠️ Warning: If you feel that the mechanism inside is broken (no characteristic click, the tool falls into the void), do not continue trying.
In the case of a serious jamming, the only safe option is to go to a service center, where the wizards will open the back cover (which is a risk in modern glued smartphones) and remove the tray from the inside, which will cost, but save the device from more serious damage.
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If the tray is not retrieved after 3-4 careful attempts with various tools, stop. The risk of damaging the phone exceeds the value of the SIM card or the time spent waiting for a new key.