A situation where there is no regular tool at hand to extract the tray SIM-This is a card that many smartphone owners know, and it often happens at the most inopportune moment, like when you need to urgently replace a SIM card or insert a memory card, and the branded paperclip has long been lost or lost in the bowels of the box. Owners of Xiaomi, Redmi and Poco devices face this problem regularly, as the holes in their models are usually quite deep and require precise exposure.
Trying to solve a problem by jumping on the first items you find can cause serious damage to the body or internal components. Mechanical damage to the sledgewall is one of the most common reasons for going to service centers for trifling reasons. In this article, we will discuss in detail what tools are really safe, how to act correctly and what you can not do to avoid turning a small household problem into expensive repairs.
Modern smartphones are designed with minimal gaps, and careless interference can break the tightness or damage contacts. The micro hole next to the slot is designed for a certain force and angle of inclination. If you use an object that is too thick or soft, you risk just crumbling it inside the mechanism, blocking the extraction completely. So it is important to approach the question in cold blood and choose the right analogue of the factory key.
Optimal alternatives to the factory key
The most obvious and safe replacement is a regular paper clip. However, not every paper clip will be perfect. You'll need a hardened steel product that won't bend at the first pressure. Thin aluminum clips often break or deform, which can cause the tip to remain inside the phone. Before using, make sure the metal is tough enough and the tip of the paper clip is flat.
If you don't have a paper clip, you can use a thin sewing needle. This is a great option, but there's an important caveat: the needle should not be too thin to cut through the mechanism, and not too thick to enter the hole. Needles are perfect for sewing machines or tight craftsmanship. The needle's eye is a handy handle to control the force, which reduces the risk of slipping and scratching the case.
⚠️ Warning: Never use pins with plastic or wooden heads if you plan to insert them completely.Plastic can melt from friction or get stuck inside, creating a cork that will be extremely difficult to remove without disassembling the device.
Another option is specialized electronics repair kits, which are often sold in radio parts stores. These kits usually have metal blades and thin pins of different diameters. Using a professional tool ensures that you do not damage the locking mechanism of the tray. If you often change SIM cards or repair equipment, buying such a kit will be a reasonable investment.
Categorically prohibited items
In the pursuit of a solution, users often grab any sharp objects without thinking about the consequences. The list of things that can not be used is quite extensive, and its violation can cause the smartphone to fail. The main danger lies in materials that crumble, bend or conduct electricity.
Wooden toothpicks are one of the most popular but dangerous tools in the world, and the wood is soft and, under extreme pressure, it just splits inside a narrow channel, and it's almost impossible to pull small chips out of the back of the case without taking the phone apart completely, and the tree can absorb moisture and swell, jamming the machine.
- ✂️ Scissors: Sharp ends can scratch the screen or body, and damage internal plumes if they go too deep.
- 🔪 Knife or blade: high risk of cutting yourself and damaging the plastic elements of the body, which when heated can melt and stick to the metal.
- 🖊️ Sticks from handles: plastic often breaks, leaving debris inside that blocks the tray spring's passage.
Of particular danger are metal objects with insulation or coatings that can come off, such as thin wires with enamel or lacquer coatings, and when rubbed against the wall of the channel, the coating is erased and creates a sticky mass that collects dust, which can lead to a disruption of contact between the two sides. SIM-map and reader in the future.
Why can't you use a lubricant?
Technique for safe tray extraction
Even with the right tool, it is important to follow the procedure. Incorrect angle of inclination or excessive force can break the plastic lever inside the mechanism. First, visually examine the end of the device in good light to determine the location of the hole accurately. It can be hidden by a decorative frame or be on different sides of the body depending on the Xiaomi model.
Insert the chosen tool (clip or needle) strictly perpendicular to the plane of the end of the smartphone. You don't need to push at an angle, it will lead to slippage and scratches. The movement should be confident, but smooth. You should feel a slight click or spring resistance, after which the tray will slightly push out.
Sequence of action:
1. turn off the smartphone (recommended to avoid short circuit).
2. Find a micro hole next to the slot.
3. Insert the instrument perpendicularly.
4. Push until you click.
5. Remove the tray with your fingers.If the tray is not pushed out after moderate effort, don't keep pushing harder. It might be rusty or contaminated. In that case, you might try tapping the palm edge slightly on the end of the phone, holding it down with the slot to knock out the dust. Sometimes it helps to sway the tool from side to side, but the amplitude should be minimal so as not to widen the hole.
☑️ Pre-extraction check
Comparison of extraction tools
To make it easier for you to choose the right item in an emergency, we've compiled a comparative table that will help you assess the risks and effectiveness of various tools at hand, and remember that the ideal tool should combine strength, the right diameter and no risk of breaking.
| Tool. | Security | Risk of breakdown | Recommendation |
|---|---|---|---|
| The factory key | Tall. | Minimum | Perfect. |
| Office paperclip | Tall. | Low. | Best alternative |
| Sewing needle | Medium | Medium (puncture risk) | Use it carefully. |
| Toothpick | Low. | Tall (crucifixion) | Not recommended |
| Paper clip (soft) | Low. | High (stuck) | Avoid use |
As you can see from the table, the paper clip is the most affordable and secure one, but if you have the option, you might want to buy or find the original key, and some electronics stores or markets may give it for free or sell it for a token amount.
If you have a model with a metal frame, the risk of damage to the end is less than that of devices with a plastic case or glass faces. Owners of Xiaomi Mi Mix or other ceramic models should be especially careful, as ceramics can crack when hit by a tool.
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If the tray still doesn't open, try to slightly heat the end of the phone with a hairdryer for 10-15 seconds.Heat can expand the plastic and soften the possible lubrication, making it easier to exit the mechanism.
What to do if the tray is stuck or broken
There are situations where even the right actions do not help, and the tray remains in place, this may indicate a mechanical lock, dirt hit or displacement of internal components after a fall. If you feel that the mechanism is dead and does not respond to pressing, further attempts can lead to the breakage of the push button.
In case the tip of the tool does break down and stay inside, don't try to get it out with a magnet - this rarely helps because of the depth of the application. It will require disassembly of the device. For Redmi Note or Poco models with a glued body, this can be difficult and require heating the back cover.
⚠️ Warning: If you don't have electronic repair skills, don't try to disassemble your phone yourself after a failed retrieval attempt.You can damage the plumes of the display or battery, which will increase the cost of repair several times.
Sometimes the shake method helps. Turn off the phone, pin your finger on the area around the slot (so the tray doesn't go far), and knock your phone abruptly on a soft but hard surface (like a book on a table), inertia can move the jammed mechanism, but this method only works with slight jamming.
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The main problem with the jamming is not the lack of effort, but the skewed tray inside the case, and it's pointless to push harder, and you have to find a way to align it or to go to the master.
Prevention of problems with the SIM-tray
To avoid the need to search for tools, you should follow simple rules of operation: regularly wipe the end of the smartphone from dust and pile, which can get into the hole. Use protective covers with raised sides that protect the end from impacts when falling.
It is also recommended that once every few months, the tray be removed and inserted back so that the mechanism does not "sour". SIM-Make sure it's flat and doesn't protrude over the edges of the tray. An improperly installed map is a common cause of jamming when you re-enter the machine.
Keep the factory key in a safe place. Many users simply throw the box with the key and then regret it. You can paste it with tape on the inside of the box or keep it in a separate organizer with cables. A unique feature of Xiaomi's design is a deep hole that requires a tool at least 25-30 mm long to guarantee a lever.