How to insert a SIM card in Xiaomi Redmi 9: step-by-step instructions

The process of activating a new smartphone or replacing it SIM-While cards may seem elementary, modern devices like the Xiaomi Redmi 9 have their own design features, and improper installation of a communication module often leads to network recognition errors or even physical damage to contacts. That is why it is important to clearly understand which slot and which side should be installed your SIM-map.

In this article, we will discuss in detail all the nuances of working with the card tray in the Redmi 9 model. You will learn how to distinguish slots from each other, whether you can use two SIMs and a memory card at the same time, and what to do if the phone stopped seeing the operator after replacing.

Before you start physically affecting the body of the device, you need to prepare the workplace. Make sure that the surface on which you put the smartphone is clean, dry and well lit, this will allow you to not lose small details and clearly see the markings of slots.

Preparation of the workplace and tools

To begin the procedure, you will need a minimum set of tools, which usually comes with the device. If the original paper clip is lost, you can use a thin needle or pin, but you should act with extreme caution so as not to damage the extraction mechanism.

It is crucial to make sure that the new card is in the correct format before installing. Redmi 9 requires a Nano-SIM card. If your larger SIM card is larger, you need to carefully break out the extra parts along the circuit or contact the operator's salon for replacement.

⚠️ Warning: Never try to insert a card into a tray by force. If it does not enter easily, then you have chosen the wrong position or confused the side.

Also worth checking is the status of the contacts on the map itself, the presence of contamination, oxides or scratches on the golden pad can cause unstable network operation, wipe the contacts with soft dry cloth before installation.

The design of the tray in Redmi 9

Xiaomi Redmi 9 is equipped with a combined tray, which is the standard for the budget and mid-range smartphone segment.This means that the physical space inside the case is limited, and the slots have a specific configuration to accommodate two communication cards and a memory card.

The tray on the bottom end of the case, to the left of the USB Type-C charging port, is a plastic platform with three recesses, two of which are designed for Nano-SIM, and one, often of excellent shape or marking, for a MicroSD memory card.

The feature of this model is the ability to flexible setup slots. You can use two SIM cards at the same time, or one SIM and a memory expansion card. Simultaneous installation of two SIM cards and a memory card as standard is impossible without the use of special adapters, which are not recommended for use.

Visually, slots can have a small marking in the form of a card silhouette or the numbers 1 and 2. Slot number 1 is usually the main and used for a card with the best tariff plan or primary number.

Step-by-step installation instructions SIM-map

The installation process requires care and a sequence of actions. First, take a paper clip to extract and insert it into a circular hole next to the tray on the end of the smartphone. Press hard enough, but without jerking until the tray jumps.

Pull the tray out completely and put it on the table. Pay attention to the beveled corner of the card - it should coincide with the beveled angle in the tray's recess. Put the first SIM card into slot 1, and the second (if any) into slot 2. Make sure the cards lie flat and do not protrude over the edges of the plastic.

Once the cards are placed, gently insert the tray back into the phone case. It's important not to confuse the top and bottom of the tray: it should come in smoothly, without resistance. If you feel a hold, flip the tray over the other side.

Once installed successfully, turn on the device. MIUI automatically detects new cards and suggests customizing their use, usually no more than a minute after the logo appears on the screen.

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If you use two of them SIM-maps of different operators, immediately after turning on, configure which one will be used for mobile Internet by default to avoid unnecessary costs.

Installation of a microSD memory card

Internal storage of 32 or 64 GB may not be enough to store a large number of photos and videos. Redmi 9 supports memory cards up to 512 GB, which greatly expands the capabilities of the device.

To install the memory card, it is placed in a special slot, which is often combined with a second SIM card slot. If you use two SIMs, the space for the MicroSD remains unoccupied. If you need a memory card, the second SIM card slot will have to be vacated.

When installing a memory card, it is also important to observe the orientation of the contacts, they should look down to the motherboard, unless otherwise indicated in the diagram on the tray itself.

⚠️ Note: Formatting a memory card will delete all the data on it. Be sure to back up your files on your computer before formatting it on your phone.

Setting up two SIM-card MIUI

After the cards are physically installed, you need to properly configure their work in the software shell. In Xiaomi Redmi 9, the management of SIM cards is placed in a separate menu where you can flexibly adjust their behavior.

Go to the settings and select the item Two. SIM-You can see a list of maps installed here, and you can give each one a name (e.g., "Work," "Home"), which is especially useful when you use different colors.

An important parameter is choosing the default card for different actions. You can assign one card for voice calls and another card for mobile Internet, and the Always Ask feature is also available if you want to manually select the card before each call.

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Properly configuring SIM-card priorities allows you to save battery power and avoid accidental traffic consumption with expensive charging.

Make sure to check if the switch is activated for each card. If the slider is turned off, the phone will not search for the operator's network, even if the card is physically installed correctly.

Possible problems and solutions

Even if installed correctly, there can be situations where the phone can't see the SIM card, most often due to software failure or contamination of contacts. First of all, try restarting the device.

If the reboot didn't help, remove the tray and wipe the SIM card contacts with a wipe or an alcohol wipe. Make sure the card is not damaged or cracked. Sometimes it helps to install the card in another slot to prevent a particular reader from breaking.

In rare cases, the problem lies in network settings. Go to the operator selection menu and try to switch from automatic to manual mode by selecting your provider from the list.

Following these guidelines, you can easily configure communication on your device, and the correct installation and configuration will ensure a stable Internet and high-quality voice communication at any point of coverage.