Xiaomi Redmi Note 7, despite its age, remains a popular device due to its excellent price-performance ratio. However, one of the main limitations of modern gadgets is the amount of internal storage that is quickly filled with apps, photos and messenger cache. Expanding memory with a microSD card is the most effective way to solve the problem of space shortage without buying a new phone.
The process of installing the drive in this model has its own peculiarities, since the tray is combined. The user needs to correctly position the SIM card and the flash drive to avoid damaging the contacts. In this guide, we will discuss all the steps from retrieving the tray to configuring the internal memory to install applications.
Incorrectly installing or ignoring the formatting rules can lead to data loss or system malfunction. Therefore, before starting the procedure, it is recommended to familiarize yourself with the technical requirements and sequence of actions. We have prepared a step-by-step algorithm that will help avoid common errors when working with the Redmi Note 7.
Preparation of equipment and selection of memory card
The first step is to purchase a compatible drive. the smartphone supports microSD, microSDHC and microSDXC cards. It is important to consider that the maximum supported volume is officially declared by the manufacturer up to 256 GB, although in practice, more capacious models often work.
When choosing a card, pay attention to the speed class. For comfortable system operation and recording high-resolution video, the minimum requirement is Class 10 or the UHS-I standard. Using slow cards will lead to noticeable delays when downloading applications and playing media files.
⚠️ Warning: Do not purchase memory cards of dubious brands in electronics markets.Fake drives may have a claimed volume of 64 GB, but physically hold only 8 GB, which will lead to cyclical overwriting and loss of your data.
Also make sure you have a special paper clip to remove the tray (company) or a thin needle. Before starting work, it is better to turn off the device to avoid software conflicts when determining new equipment with the MIUI system.
Physical installation of the card in the slot
The installation process requires care, because the tray in the Redmi Note 7 is a combined design, on one side is space for nano-SIM, and on the other is a special compartment for the memory card, and it is important not to confuse the sides and orientation of contacts.
Find a small hole near the USB Type-C connector on the bottom end of the smartphone. Insert the paper clip into the hole perpendicular to the body and slightly press until the click. The tray will extend and it can be removed with your fingers.
☑️ Pre-installing check
Put the memory card in the designated place. Pay attention to the shape of the cutout: it should perfectly match the circuit of the tray. If the card falls with force or does not fix, check the correct orientation. After placing the card, carefully insert the tray back into the smartphone to the end.
Turn on the device. The system will automatically detect new hardware. If the card has been used in another phone or camera before, it may need to be formatted to work properly with the Android file system.
Primary configuration and formatting
After the smartphone is turned on, a notification will appear in the notification curtain to indicate that a new drive has been detected. Click on it or go to Settings → Memory. The system will offer two use cases: as a portable storage or as internal memory.
Portable storage allows you to store photos, videos and music on the map, which is convenient if you plan to often transfer the card to other devices or your computer, files will only be available after you connect the card.
Integrates the card into the system, which allows you to install applications and their data on the USB drive, but in this mode, the card is encrypted and will not work on other phones without re-formatting.
What happens when you format?
To go to the formatting menu, follow the following steps:
- 📱 Open Settings in the Applications menu.
- 💾 Select About Phone or Memory (depending on version) MIUI).
- 📀 Click on your name. SD-maps.
- ⚙️ Select Format and Confirm the Action.
Use as an internal memory
The internal memory expansion feature is especially relevant for the basic versions of the Redmi Note 7 with 32 GB of internal storage, activating this mode allows the system to perceive the card as an integral part of the main drive.
Once you select the option "Use as internal storage", the system will suggest that you move the data, which can take a long time depending on the amount of information, and it is strongly discouraged from interrupting the process.
| Parameter | Portable storage | Internal memory. | |
|---|---|---|---|
| Installation of applications | Limited. | Full support | |
| PPC portability | No restrictions. | Formatting required | Formatting required |
| Speed of operation | Standard. | Optimized by the system | |
| Security | Access from other devices | Encryption for the current phone |
It’s important to understand that even after the transfer, some system applications and critical components of Google Play Services may remain on the built-in drive.
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For maximum performance when using the card as internal memory, choose drives with a write speed of at least 90 MB / s (standard A2).
Transfer applications and data to the SD card
Once you have set up the storage, you can start migrating data, not all applications support migrating to an external drive, because developers can limit this function, and you can check the portability in the settings of each application.
Go to Settings. → Annexes → All applications. Select the program you want from the list. If transfer is possible, the memory button will be active, and inside you will see the option to Change or Move to SD-map.
For multimedia files (photos and videos), the best way to change the settings of the camera itself is to open the Camera app, click on three bars in the corner and select Settings. SD-Now, all new images will automatically be saved to the flash drive.
⚠️ Note: When removing the application, transferred to SD-If the system does not find the data file, the deletion may not be correct and the remaining files will take up space on the built-in disk.
It is also recommended to transfer the cache of heavy applications, such as navigators (Yandex.Navigator, Google Maps) and instant messengers (Telegram, WhatsApp), in the settings of these applications, there is often a separate item for choosing the way to save downloaded files.
Possible problems and ways to solve them
Sometimes users are faced with a situation where the phone does not see the memory card, this can be caused by oxidation of contacts, software failure or damage to the file system. First of all, try to wipe the contacts of the card with a soft eraser.
If the device is writing «SD-Card damaged" or "Formatting required" but refuses to perform the operation, try connecting the phone to your computer via USB-Use your PC to check for errors through the standard Windows chkdsk utility.
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If the phone constantly loses the memory card after rebooting, it may be the tray SIM-The card has a backlash or the card itself is physically deformed and does not fit tightly to the contacts.
In case of software errors, resetting your phone to factory settings helps. Before you do that, make sure to back up your data. Go to Settings → About Phone → Reset → Clean everything.
The following list will help diagnose the problem:
- 🔍 Check the card on another device (camera, other phone).
- 🔄 Try formatting the card through a computer in format FAT32 exFAT.
- 📲 Make sure the version MIUI Updated to the last available.
- 🛠️ Check the tray. SIM-Cards for Mechanical Damage.