How to open the compartment for SIM-Xiaomi cards without a needle: step-by-step instructions

Why isn’t a standard needle always on hand?

The situation is familiar to many: you just bought a new Xiaomi smartphone, happily unpacked the box, and when it came to installing it, you’ve been waiting for the first time. SIM-They found that the metal needle to open the tray was lost in the package or not included at all, or worse, you have been using your phone for a long time, but suddenly you need to change your SIM card urgently, and there is no tool at hand?

In this article, we will discuss 7 proven ways to open the compartment for the SIM-Xiaomi cards (including Redmi Note 12, Poco) X5, Mi 11 and others) without the needle, and it's important that all methods are safe for the device if done carefully.

The SIM tray in Xiaomi smartphones is fixed by a spring mechanism that works when you press a small hole next to the connector. The standard needle has a diameter of 0.7-0.8 mm - this is the size that ensures reliable operation without risk of damage to the mechanism. Your task is to find a replacement that:

• 🔹 Thin, but not bend (diameter not more than 1 mm)
• 🔹 Strong - does not break when pressed
• 🔹 Smooth - without burrs that can scratch the body

Method 1: Paperclip - classics of the genre

The most common branded needle is a paper clip, suitable for almost all Xiaomi models, including the Redmi 10, Poco F4 and Mi 11 Lite. Here's how to use it correctly:

Untighten the paperclip into a straight line|Bite off the tip with cutters 3-4 cm long|Roll one edge by 1-2 mm for the stop|Check that the tip is smooth (sweep with sandpaper if necessary)-->

Now, gently insert the paperclip into the tray hole at a 45-60° angle and press with a force of 1-1.5 kg (roughly as if you press the doorbell button). The tray should pop out 1-2 mm - after that it can be pulled out with your fingers.

⚠️ Warning: Don't use rusty staples! oxidized metal can leave traces on antenna lines inside the hole, which will impair signal reception.

If the paperclip is too thick and doesn't fit in the hole, try the other end or take a stapler clip, which is thinner than standard stationery. For dual-seat models (such as the Redmi Note 11 Pro+), the force must be applied strictly perpendicular to the body, otherwise the tray may jam.

Method 2: A pin or sewing needle

Sewing accessories are a great alternative if you don't have a paper clip on hand, and the rule is that you should have an earless needle (i.e., with a blunt end).

• 🧵 Sewing pins (diameter 0.6–0.8 mm)
• 🧷 English pins (pre-remove the plastic tip)
• 🪡 Needles for sewing machines (the most durable)

The technique is the same: insert the needle into the hole to the point and press. For models with a metal body (for example, Xiaomi 12T), it is better to wrap the needle with tape at a distance of 1 cm from the end, this will prevent the fingers from slipping.

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If the needle is too sharp, grind the tip against sandpaper or rub against a concrete wall - this will make it dull and safe for the tray mechanism.

The advantage of this method is a precise fit: the needle enters the hole perfectly without scratching the body. But be careful: if the needle breaks inside, it will be difficult to remove the debris. For models with IP53 protection (for example, the Poco X4 Pro), use only stainless needles - ordinary ones can oxidize from moisture.

Method 3: Toothpicking or matching

If you only have wooden objects on hand, don't despair, a toothpick or match will be good for an emergency opening, but you need to be careful.

1. Break off the sharp tip of the toothpick to make a blunt rod.
2. Dip the tip in PVA glue or wrap with tape - this will strengthen the tree.
3. Insert the toothpick strictly in the center of the hole, without distortion.
4. Press with a force of 0.8-1 kg (as when pressing the keyboard).

⚠️ Warning: Wood may crumble inside the hole! After removing the tray, check if there are any sawdust left in the mechanism - they can block the spring.

This method is suitable for models with a plastic body (for example, Redmi A1 or Poco C40). For smartphones of the premium segment (for example, Xiaomi 13 Ultra) it is better to avoid wooden objects - they can scratch the anodized coating.

Paperclip|needle|Toothpick|Special needle from the kit|Another option-->

Method 4: Headphones with a 3.5 mm connector

If your Xiaomi is still equipped with an audio jack (for example, Redmi Note 10 or Poco M4 Pro), you can use a metal headphone plug.

1. Remove the rubber cover from the plug (if any).
2. Disassemble the plug so that only the metal rod remains.
3. Insert the rod into the tray hole and press.

The advantage of the method is that the metal of the plug is stronger than the paper clip and does not bend.

• 🎧 Suitable only for plugs with a diameter of a rod 0.7-0.9 mm.
• 🎧 Do not use gold-plated plugs – soft metal may remain in the mechanism.
• 🎧 For models without a 3.5 mm connector (for example, Xiaomi 12), this method is not suitable.

Important: If the plug is stuck in the hole, do not try to pull it out with pliers - this will damage the body. Instead, gently swing it from side to side, while pulling at the same time.

Method 5: A stationery knife or blade

This method requires maximum accuracy, but it is suitable if only sharp objects are at hand. Use the blunt edge of the blade (not cutting edge!), following the instructions:

1. Break off a piece of blade length of 2-3 cm.
2. Wrap it with tape, leaving the 5 mm blunt edge free.
3. Insert the blade into the hole parallel to the body, rather than perpendicular.
4. Press with minimal force - 0.5-0.7 kg is enough.

⚠️ Attention: The blade can slip and scratch the screen or body! before use, practice on an unnecessary plastic item to feel the required effort.

Method 6: Cell Phone (Yes, Seriously!)

If you have an old button phone on hand (like the Nokia 3310 or Samsung E1100), you can use it to open the tray.

1. Remove the back cover and remove the battery.
2. You will see metal contacts – take a spring contact (usually located at the top).
3. Carefully put a screwdriver on it and straighten it out.
4. Use it as an improvised needle.

The spring contacts from older phones are perfect for thickness (0.6-0.7 mm) and strength, and they don’t break or bend, unlike paper clips, a technique that is particularly relevant for Xiaomi models with a recessed compartment (such as the Mi Mix 3), where a longer tool is required.

Method 7: Professional tools (for frequent use)

If you often have to open up SIM-Trays (for example, testing many smartphones), it makes sense to get special tools:

• 🔧 Set for repair of smartphones (costs 200-500) ₽, includes needles of different diameters).
• 🔧 Magnetic needle (comfortable for deep-bay models, such as Xiaomi Black Shark).
• 🔧 Plastic mediators (safe for the body, but require skill).
• 🔧 Titanium Needle (Not Bend, Suitable for Xiaomi) 13T Pro with reinforced mechanism).

Professional tools are inexpensive, but they will save you the risk of damaging your smartphone. For example, a magnetic needle not only opens the tray, but also helps to extract stuck pieces of paper clips. And plastic mediators are indispensable for models with a glass back panel (for example, Xiaomi Civi 2), where metal can scratch the surface.

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For models with water protection (IP53 and above), use only stainless steel or titanium tools. Conventional metals can oxidize inside the hole, which will corrosion the mechanism.

What if the tray is jammed?

If after all the manipulations, the tray doesn't come out or is stuck halfway, don't panic.

1. Check the force: sometimes the tray jams due to insufficient pressing. Try to press harder (but not more than 1.5 kg).
2. Swing the tray: gently move it left-right, while pulling on yourself.
3. Use a vacuum: Apply a vacuum cleaner to the tray at minimum power - the airflow can pull it out.
4. Contact the service: if the tray is broken, self-repair can damage the antenna lines.

For models with a retractable mechanism (such as the Xiaomi Mi Mix), try to heat the body slightly with a hairdryer (temperature not higher than 50 ° C) - this will expand the plastic and make it easier to extract. But remember: overheating can damage the battery!

Critical information: if moisture gets into the tray (for example, after rain), do not try to open it by force. Dry the phone in rice or silica gel for at least 12 hours - moisture inside the mechanism can cause corrosion.

FAQ: Frequent questions