How to Insert SIM in Shaomi Redmi 9

Installing an operator card is the first and most important step in starting a smartphone, and the Xiaomi Redmi 9 Pro is no exception. Despite the seemingly simple procedure, many users face difficulties finding a tray or are afraid of damaging the device with the wrong actions. In this guide, we will detail how to remove the tray correctly, which side to put the chip and what to do if the card is not recognized by the system.

Modern gadgets from Redmi are equipped with hybrid slots, which requires careful layout of memory modules. Incorrect installation can cause the phone to stop seeing the network or not identify the memory card. To avoid such situations, you need to clearly follow the algorithm of actions described below and take into account the design features of your device.

It's important to understand that microelectronics requires precision and no static voltage. Before you start manipulating, make sure your hands are dry and clean and the smartphone is off, although current standards allow hot replacement. We'll look at all the nuances, including working with the paper clip and the orientation of the contacts, so you can enjoy the connection immediately after unpacking.

Preparation of the workplace and tools

Before you start physically affecting the body of your smartphone, you need to prepare your workspace. You need a flat, well-lit surface, preferably with a light coating, so that small parts like a tray or a paper clip do not get lost in the event of a fall. It is also crucial to turn off the device by pressing and holding the power button to avoid short-circuiting the contacts when you remove or install the communication module.

The main tool for this operation is a special metal clip that comes complete with a box from Xiaomi Redmi 9 Pro. If the original tool is lost, you can use a regular stationery clip, straightening one of its ends, or a thin needle. The main requirement for the tool is its strength and thin profile, so that it freely enters the hole of the ejection mechanism without getting stuck there.

Make sure you have yourself on hand. SIM-This model requires the Nano-SIM format, which is the smallest of the existing standards, and if your card is larger, it should be carefully trimmed along the contour or replaced with a new one that meets modern requirements.

Search for a SIM card tray on the body

The location of the operator card slot on the Redmi 9 Pro may raise questions for those who are used to classic solutions. Unlike many other models where the tray is on the side, here the company's engineers placed it on the top of the device, which is done to save interior space and accommodate a more capacious battery.

Look at the top of your smartphone, and you'll see a small circular hole next to a narrow, elongated slot, and that's where you put a tool in. And it's often a schematic drawing of the phone with an arrow pointing the direction the tray should go when you press it. And be careful not to confuse this slot with an infrared port hole, which is also on the top end, but looks like a black glass dot.

The tray in the Redmi 9 Pro is hybrid, which means that you can install either two SIM cards, or one SIM card and one microSD memory card. The tray design provides two SIM and one memory, but you can physically use only two modules from three possible options at the same time. This is an important nuance to consider when planning the configuration of the device.

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When searching for a tray, feel a small notch on the end of the body with your finger - this will help you to orient yourself faster if it is difficult to see the hole in poor lighting.

The tray extraction process

To extract the tray, take a prepared paper clip or needle and place it perpendicular to the top of the smartphone. Carefully insert the sharp end of the tool into the circular hole of the ejection mechanism. You should feel a light stop — this is the spring of the mechanism.

Press the paperclip a little bit with a moderate force. You don't have to push hard, but you don't have to push too hard either, because the mechanism should work. Once you feel the tray moved and it's partially out of the case, remove the tool and with your fingers gently pull over the edge of the tray, pulling it out completely.

When extracting, pay attention to which side it was inserted so that when you reverse install it, you do not confuse the top and bottom. If the tray is stuck or not removed, do not use excessive force - check if you hit the hole correctly.

Proper orientation and installation SIM-map

Once the tray is removed, you will see a metal or plastic frame with cutouts. The Redmi 9 Pro uses a placement scheme where both slots are used for the purpose of the car. SIM-The cards are on one side of the tray, and the memory card space (if you don't use the second SIM) is on the other side or in a specific recess. Carefully look at the shape of the cutouts: they exactly repeat the contours of the Nano-SIM card.

Take it. SIM-And you can match it to the notch in the tray. The key here is the location of the bevelled angle. There's a characteristic cut in the map and the tray that allows you to insert the chip in only one correct position, and if the card lies flat and doesn't protrude beyond the edge of the frame, then you're doing it right. If you have to push or the card is hanging, turn it over.

The gold pins on the map should look downwards to the contacts of the smartphone when the tray is inserted back. The top of the card usually has the operator logo or number applied. Make sure the card sits tightly in its recesses and does not shift when shaken lightly. For microSD cards, the principle is similar: contacts down, the bevelled angle is combined with the pattern on the tray.

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Golden contacts SIM-cards should always be directed down to the motherboard of the phone, and the beveled angle should exactly coincide with the shape of the cutout in the tray.

Inserting the tray back into the smartphone

When the cards are placed in the tray, the critical time to return the structure to the inside of the case. Take the tray so that the bevelled side of the card coincides with the direction of the insertion. In Redmi 9 Pro, the tray is inserted back into the same hole on the upper end from which it was removed.

Carefully insert the tray into the groove, making sure it enters smoothly, without skewing. If you feel resistance, don't push -- most likely, the tray is turned over or inserted on the wrong side. A properly oriented tray enters smoothly, with little or no effort, until it rests in the connector inside the housing.

Push the tray to a characteristic click or until its edge is completely lost in line with the phone body. It should stand flush with the frame of the smartphone. If part of the tray is left sticking out, this can lead to leakage (if claimed) or damage to the mechanism when worn in the case.

Initial communication setup and verification

Once the tray is successfully installed, you can turn on your smartphone. Press and hold the power button until the Mi or Redmi logo appears on the screen. Once you boot the Android operating system with the MIUI shell, the device will automatically start searching for networks.

Pay attention to the top of the screen (status bar): icons with signal level and operator designation should appear there (for example, MTS, Beeline, Tele2). If you have two SIM cards, you'll see two of them, and the system may also suggest you set up your preferred one. SIM-Call card and mobile internet if not previously done.

If the phone says no SIM-"Master" or "Put in" SIM-map, try restarting the device. In rare cases, activation of the cards through the settings menu in the Settings section is required. → SIM-Make sure that the sliders in front of your operators are activated and lit in blue or green.

Possible problems and ways to solve them

Despite the simplicity of the procedure, users sometimes face difficulties. One of the common problems is that the phone can't see. SIM-This may be due to contamination of contacts. Rub the golden patch on the map with a soft dry cloth or a swallow to remove oxidation or fat.

Another common situation is format incompatibility. SIM-If you have a card, it may not fit tightly in the Redmi 9 Pro tray, which causes you to lose contact. In such cases, it is better to ask the operator for a new Nano-SIM card, since adapters often cause the tray to break.

Also worth mentioning are software failures. If the map is physically intact and set correctly but there is no connection, try resetting the network settings. Go to Settings → Connection & Sharing → Reset Wi-Fi, mobile network and Bluetooth. This action will return network settings to factory values and often solves the problem of logging into the network.

Characteristics table of the Redmi 9 Pro slot

To make it easier to understand the technical details of the slot configuration, we have prepared a summary table that will help you quickly navigate the capabilities of your device with respect to memory cards and SIM cards.

⚠️ Warning: Never try to force a tray into your phone unless it comes in easily, which can cause internal contacts to break or the body to deform, leaving you with no warranty.

⚠️ Note: Do not use wet wipes or alcohol to clean your contacts SIM-The liquid can leak under the card's protective layer and cause the chip to corrosion.

Frequently Asked Questions (FAQ)

⚠️ Warning: Be careful when using metal staples: if you damage the internal contacts inside the hole, repairs can be costly.