Redmi Smartphone 4X It is deservedly considered one of the most reliable budget devices of the company, but even time-tested devices sometimes have situations that require physical intervention. The most common reason why the owner needs to remove the communication module is to replace the operator, install a new one. SIM-card or need to replace a memory card if the internal drive is full. Despite the apparent simplicity of the procedure, inept actions can damage the case or the slot itself.
Unlike today’s flagships, where the tray is often combined with waterproofing, the 4X uses a classic mechanical mechanism that requires carefulness. Incorrectly selected tools or excessive effort can cause micro-switches to break inside the socket, which is why it is important to clearly understand the design of your device before you start manipulating.
In this article, we will take a closer look at all the nuances of the process, from choosing the right tool to acting in an emergency when the tray is jammed, learn how to safely extract a SIM card without damaging either plastic elements or metal contacts, and get answers to frequently asked questions.
Tools and workplace preparation required
Before you start removing the tray, you need to organize the workspace, and the ideal option is a table with good lighting and a clean surface covered with soft cloth or mat, which will prevent the loss of small parts, such as the mat itself. SIM-card or a fallen paperclip, and also protect the screen of the smartphone from scratches in case it accidentally slips.
The main tool for the procedure is a special key-clip, which comes with the device. It has a specific shape: a thin needle on one side and a wider handle for easy grip. If the original accessory is lost, it can be replaced by a regular stationery clip, straightening one of its ends, or a thin needle for sewing. The main requirement for the tool is its strength and thin diameter, so that it can freely enter the opening of the mechanism.
It is strongly recommended not to use thick objects such as a stiletto, toothpicks (they break inside) or knives. Using inappropriate tools can cause the tip to break off inside the hole, blocking the mechanism forever.
- 🔧 Special key-clip from the kit or a thin needle.
- 💡 Good lighting for visual control of the process.
- 🧵 Soft fabric or mat on the table to protect the screen.
- 🔦 Lantern (optional) for lighting the tray hole.
Location of the slot for SIM-maps 4X
Design of Xiaomi Redmi 4X This involves placing a SIM card tray on the top end of the case, and unlike many modern models where slots are on the side, engineers chose the top position, which is typical of devices from that release period. The tray is a combined module designed to install two SIM-Nano-SIM cards and one microSD card.
To find the hole to extract, look carefully at the top of your smartphone, and you'll see a narrow slot of metal frames, and next to it, a tiny circular hole, and that's where you put the tool in, and it's important not to confuse this hole with a noise reduction microphone, which is also on the top end, but looks like a little black dot with no metal edging around.
Visually, the tray in the closed state almost merges with the body, but on closer inspection, you can see a thin line of the joint. The metal frame around the slot serves as a guide for the tool and helps to fix it in the correct position before pressing. Make sure you hold the phone tightly so that it does not slip out when the force is applied.
The Redmi 4X is different from Redmi 4 Prime
Step-by-step: how to remove the tray
The process of removing the tray takes only a few seconds, but requires the correct execution technique. First, take the smartphone in your left hand (if you are right-handed) so that the upper end is directed towards you and the screen is facing down or sideways. This will provide better visibility and control over the situation. Make sure that your fingers do not block access to the hole.
Take the key-clip with your right hand and hold the point perpendicular to the hole on the end. Put the needle inside the hole to the end. You will feel a slight resistance of the spring mechanism. At this point you need to make a confident, but not sharp press strictly along the axis of the hole. You do not need to push hard; the mechanism works with medium force.
Once you hear a slight click, or feel the tray moved a couple of millimeters, stop the pressure. Carefully tuck the edge of the tray with your nail or tweezers and remove it completely from the case. Now you can replace the nano-SIM or memory card. When you reverse set up, watch the orientation of the contacts: they should look down, and the cut corner of the card matches the circuit on the tray.
☑️ Extraction checklist
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If the tray is not retracted at the first press, do not increase the force immediately. Try to change the angle of the needle slightly or slightly twist it around your axis to find the right thrust in the mechanism.
What to do if the tray is jammed or not removed
The Redmi 4X tray is not easily retrievable, but it is possible. The main cause may be dust contamination, contact oxidation, or the tray itself deformed by previous careless extractions. If you feel the mechanism is running tight when you press the paper clip, but the tray is not coming out, do not use excessive force to avoid breaking the plastic pusher inside.
Try rocking. Put the tool in, push it to the end, and, without letting go, sway the phone slightly from side to side. Sometimes this helps to free the stuck spring. You can also try to insert the clip not strictly perpendicular, but at a very small angle (literally a few degrees) up or down to hook the edge of the mechanism.
In some cases, it helps to use sticky tape. If the tray is pushed out by a fraction of a millimeter but stuck, stick a piece of tape sticky side to the end of the tray, creating a kind of "tongue," and pull. However, this method only works if there is even a minimum gap. If the tray does not respond at all, you may need to disassemble the device to access the mechanism from the inside.
⚠️ Warning: Never try to tray with a knife blade or a needle on the side of the screen or body, trying to crack the joint.You will irrevocably damage the aluminum body and may damage the plumes located under the frame.
Compatible map formats and installation scheme
Xiaomi Redmi Device 4X It has a universal hybrid slot, which means that the user can choose the configuration of memory usage. SIM-It is important to use the right format cards: this model only installs nano-SIM cards, which are the smallest on the market.
Trying to insert a micro-SIM or standard SIM without a special adapter-adapter will cause the card to simply fall inside the case or get stuck.If you have a larger card, be sure to contact the communications salon to crop it or replace it. Using homemade adapters made of paper or tape is not recommended, as they can get stuck inside the phone.
The setup is based on your needs: you can use two SIM cards from different operators to separate personal and work calls, or you can use one SIM card and a memory card to expand storage. The third option is to use only one SIM card and a large memory card. The hybrid slot does not allow you to use two SIM cards and a memory card at the same time.
| Configuration | Slot 1 (SIM 1) | Slot 2 (SIM 2) | Slot 3 (MicroSD) |
|---|---|---|---|
| Two SIM cards. | Nano-SIM | Nano-SIM | Not used. |
| One Sim + Memory | Nano-SIM | Not used. | MicroSD (up to 128 GB) |
| Maximum memory | Not used. | Not used. | MicroSD (up to 128 GB) |
| One Sim (reserve) | Nano-SIM | Not used. | Not used. |
Frequent problems and their solution
One of the common problems is that the phone doesn't see the SIM card after installation, most often due to the card being placed in the tray incorrectly, the contacts may not have come into contact with the reader's platform. Remove the tray again, wipe the SIM card contacts with a soft eraser or dry cloth, and re-mount it, making sure that it lies flat and does not hang.
Another problem is that the tray will fall out spontaneously, and this can happen if the mechanism is worn out, or if the tray is not fully latched, make sure that when you push the tray back in, you feel the characteristic snap of the fixation, and if the tray is dangling, you can try to bend its edges gently with tweezers, but you need to do this with extreme caution.
If your phone says "No Network" or "Emergency Calls Only" after you replace your SIM card, check the settings on the menu, sometimes manually select the operator or reboot the device, and make sure that the SIM card itself is active and not blocked by the carrier.
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Correct orientation of contacts and a tight fit of the tray are the main conditions for stable operation of the communication module. Do not ignore the click when installing.