The operation to extract the card of the mobile operator seems to be a trivial task available to every smartphone owner, but in the Xiaomi ecosystem there are nuances, ignoring which can lead to damage to the device. Modern Redmi models are equipped with combined slots, moisture protection mechanisms and dense fit of components, which requires a certain accuracy when intervening.
In this article, we will take a closer look at the tray extraction algorithm, look at how to solve jammed mechanism problems, and explain the difference between hybrid and individual slots in different generations of smartphones. Understanding the physical design of your gadget will help avoid accidental breakdowns when replacing a SIM card or memory card.
Preparation of the workplace and necessary tools
Before you start to physically affect the body of the smartphone, you need to ensure a safe procedure. The best option is to use a table with good lighting, where there is no possibility of small parts falling into hard-to-reach places. The surface should be clean and dry to prevent dust from entering the device or static electricity.
The main tool for retrieving the tray is a special metal clip that comes bundled with each new Redmi device. If the original key is lost, it can be replaced with a stationery clip, straightened with a needle or even a thin clove earring. The main requirement for the tool is sufficient rigidity and a sharp, but not cutting tip that can activate a mechanical pusher.
It is highly recommended not to use knives, wide diameter sewers or sharpened objects for this purpose, as they can damage the plastic lock mechanism inside the case. It is also worth preparing a soft microfiber wipe in advance to wipe the SIM card contacts before re-installing, if necessary.
⚠️ Warning: Never try to remove the tray while the smartphone is on and actively transmitting data, although modern systems are protected, the risk of a software error in the event of a sharp break in the connection with the card exists.
💡
If you have lost the factory paperclip, use a regular stationery clip, having previously straightened one of its ends until you get a flat rod.
Determine the type of slot in your Redmi model
Xiaomi Redmi devices have undergone many design changes over the years, and the type of SIM card slot is one of the key differences between the budget and flagship models. Understanding the configuration of your tray is critical, as improperly installing cards can lead to contact closure or mechanical spelling.
Most modern models use a combined slot for two nano-SIM cards, either one nano-SIM and one microSD memory card. In such designs, the second position of the tray has a specific shape that allows you to install only one type of media, but not both at the same time. There are also models with three independent compartments, where memory cards are installed separately, which is less common and is typical for older or specific modifications.
To accurately determine the type of your slot, just carefully examine the end of the smartphone or the specification on the official website of the manufacturer. Below is a table that systematizes the types of slots in the popular Redmi series, which will help you navigate the design of your device.
| The Redmi series | Slot type | Support for microSD support | SIM format |
|---|---|---|---|
| Redmi Note (old) | Separate | Yeah, separate slot. | Micro / Nano |
| Redmi Note (new) | Hybrid | Instead of the 2nd SIM | Nano-SIM |
| Redmi (budget) | Combined | Yeah, in the SIM 2 tray. | Nano-SIM |
| Redmi Pro / Premium | Double Nano. | No (memory only) | Nano-SIM |
Note that in hybrid slots, installing a memory card automatically disables the second SIM card, so the user has to choose between the memory extension and the second number. In models with a separate microSD slot, this dilemma is not worth it, which is a significant advantage for active media users.
Step-by-step algorithm for tray extraction
The process of extracting the tray in Xiaomi smartphones is standardized, but requires proper tool positioning and moderate effort. Find a small circular hole on the end of the device, which is usually located next to the long narrow slot of the tray itself. In some models, especially with moisture protection, the hole can be slightly deepened or have a rubber seal.
Insert the tip of a paper clip or a special key strictly perpendicular to the surface of the case into the hole. Press confidently, but without jerking, until you feel a slight click and a springy stroke of the mechanism, after which the tray should extend from the body a few millimeters, which will allow you to grab it with your fingers.
☑️ Procedure for extraction
If the tray is out, gently pull it out, trying not to damage the rubber seal if it is present on the end. Don't pull too sharply, as there may be contacts inside, which, when a sharp jerk sometimes sticks. After extracting, examine the tray: it usually has a schematic image showing how to correctly orient the card chip relative to the contact area.
To set the card back, place it in the notch tray, making sure the cut angle matches the shape of the socket, and the golden contacts point down (or up, depending on the model, check the circuit on the tray). Put the tray into the phone smoothly, without skewing, until the characteristic snap of the fixator.
⚠️ Warning: If the tray does not enter to the end and there is resistance, do not push with force - most likely it is skewed or inserted by the wrong side, which can break the internal guides.
What to do if the tray is stuck or not taken out
Redmi's SIM card tray is not often removed, but it is very uncomfortable. Most often, the tray itself is deformed, dirt or dust is trapped in the machine, or the inner spring is displaced. First, try wiggling the key slightly in the hole, changing the pressure angle to find the activation point.
If a standard press doesn't work, you can try using a thinner but stronger tool, such as a sewing machine needle, to penetrate deeper into the hole and press the hidden lever. However, be extremely careful not to pierce the mechanism through and damage the nearby plumes, if the design of the housing allows such access.
In cases where the tray is partially out but stuck due to deformation of the edges, you can try using a thin tweezer or even a piece of double-sided tape pasted on the end of the tray to carefully pull it out. Some users have successfully applied the "drip glue" method, applying a micro dose of super glue to the end of the paper clip, gluing it to the tray and waiting for it to completely freeze before extraction, but this method carries high risks and is not recommended for devices on warranties.
If the mechanical action is not working, the problem may be internal sticking or oxidation, in which case the best solution is to go to an authorized service center, where specialists will open the device without damaging the leakage of the case and remove the stuck element with a professional tool.
The glue method is the last resort
Discussing the problems with the hybrid slot and microSD
Owners of smartphones with a hybrid slot often face confusion when installing memory cards and SIM cards.The main difficulty is that the frame for the microSD and second SIM card in such Xiaomi models is common, and it is physically impossible to install both media at the same time.
When you remove this combined tray, look at the movable part of the frame. Depending on the model, the memory card can be installed either on top of the SIM card or in a separate compartment inside the same frame. When you remove the microSD card, you often need to first remove the frame itself and then remove the card from it, sometimes by lightly pressing the edge of the card to make it click.
In hybrid slots, the contacts of the memory card and the SIM card can be oriented in different directions or at different height levels. Always check the engraved metal part of the tray, where the position of the chips is schematically shown.
If you plan to change memory cards frequently, it is more convenient to use an external card reader or cloud services to avoid permanent physical wear and tear of the tray extraction mechanism. Frequent manipulation of the paper clip can shake the spring mechanism, and at some point the tray will cease to fix in the closed position.
💡
A hybrid slot is a compromise between the compactness of the case and functionality, requiring the user to choose priorities: a second number or additional memory.
Programmatic aspects and data security
While SIM card extraction is a physical procedure, it is closely related to smartphone software. MIUI. The system may not require special permission before retrieving the card, but after re-installation, input may be required. PIN-This is a standard security measure to prevent your SIM card from being used in a lost or stolen phone.
In some cases, especially when you upgrade or crash, your smartphone may not see the SIM card immediately after installation. If the network is lost after you extract and return the card to the tray, try restarting the device. → SIM-cards and mobile networks should check whether the SIM card is activated, since when extracted, the system could programmatically "disable" the slot to save energy.
Although modern file systems are resistant to failures, the risk of damage to the partition table when writing always exists, so try not to extract media in times of high load on the system.