Xiaomi’s Redmi series has long proven to be affordable and reliable, but the standard amount of internal memory is often insufficient for modern users. Owners of the Redmi 4A (codenamed santoni) often face a shortage of space for photos, music and applications. The solution to this problem is the use of an external microSD drive, which allows you to significantly expand the functionality of the gadget without overpaying for a more expensive version.
The process of installing a memory card in this smartphone is technically simple, but requires care and compliance with certain rules to avoid damaging contacts or trays. Installation or use of incompatible drives can lead to read errors or even damage to the slot. In this article, we will discuss in detail how to choose the right card, install it in the Xiaomi Redmi 4A tray and configure the system to work correctly with external storage.
Choosing the right memory card for Redmi 4A
Before you start physical installation, you need to make sure that the selected drive is compatible with your device. Smartphone Xiaomi Redmi 4A supports cards format microSD, microSDHC and microSDXC, but the maximum officially declared volume is 32 GB, although in practice often work and cards with a volume of 64 GB and even 128 GB. It is important to pay attention to the speed class, as it depends on the speed of the system when working with files.
The best choice for a budget device will be a Class 10 or UHS-I card, which will ensure stable video recording and fast multimedia download. Using too slow cards (for example, Class 4 or Class 6) can lead to a slowdown in the interface if you decide to move some applications or cache to them.
When buying, you should also consider brand reliability, giving preference to proven manufacturers such as SanDisk, Samsung or Kingston. Cheap analogues of unknown brands often have an understated real volume and low recording speed, which can cause the loss of important data.
- 📏 Form factor: Make sure the card is microSD (small) sized rather than full sized SD.
- ⚡ Speed: Look for the Class 10 marking, U1 or V10 comfortable.
- 💾 Volume: It is recommended to use 16 to 64 GB cards for maximum compatibility.
⚠️ Before buying a card with a volume of more than 32 GB, check the current reviews of Redmi owners. 4A, because support for large volumes depends on the firmware version and the specific memory controller in your batch of devices.
Preparation of the device for installation of the storage device
While modern devices support hot card swaps, with the Redmi 4A and its hybrid slot, it is safer to completely shut down the gadget to avoid short-circuit contacts or software errors when identifying new hardware.
Find the scoring on the back of the device for SIM-In this model, it's on the top edge (in the portrait orientation of the screen) or the side, depending on the regional version, but most often it's the top end. You'll need a special clip that came with the kit, or a thin needle to remove the tray.
☑️ Preparation for installation
Carefully press the paperclip into the tray hole until it pops out. Be careful not to make excessive efforts to avoid damaging the mechanism. 4A a combined slot where one side is intended to SIM-cards, and the other for microSD, or they can be located on different sides of the tray depending on the modification.
Step-by-step: how to insert a memory card
Installation of memory card in Xiaomi Redmi 4A It's very careful because of the design of the tray, and it has two sides, and it's usually one side. SIM-map, and on the back side is the second SIM-card and microSD slot.You need to flip the tray to access the memory card slot.
Put the microSD card in the slot so that the contacts (the golden part) are pointing down to the contacts of the tray. The cut corner of the card should match the shape of the notch in the tray. The card should easily enter the groove and lock, slightly spring. Don't try to shove the card by force - if it does not enter, then you are holding it wrong.
| Tray element | Location. | Appointment | Features |
|---|---|---|---|
| Slot 1 (Face) | Outside | SIM-map (Nano-SIM) | Main number |
| Slot 2 (turnover) | Inside | SIM-map (Nano-SIM) | Number two. |
| Slot 3 (turnover) | Near Slot 2. | microSD card | Expansion of memory |
Once the card is successfully installed, gently insert the tray back into the smartphone case. Make sure the tray enters smoothly and to the end, leaving no gaps. If the tray does not enter to the end, do not press, take it out and check the orientation of the map and SIM-map.
What if the tray doesn't fit?
Now turn on the device. The MIUI shell Android system should automatically detect the new drive and suggest setting it up.
Configuring and formatting in the MIUI system
After the operating system is loaded, the notification of the new memory card should appear in the notification curtain. If this does not happen, go to the Settings menu and find the Storage (or Memory) item. SD-map.
The first step after installation is formatting, and the system will suggest formatting the card to adapt its file system to Android needs, and note: formatting will delete all the data, so if there's important information on the map, copy it to your computer before installing it on your phone.
The system can offer two uses in the setup process: as a portable storage device or as internal memory. For the Redmi 4A, with its limited internal storage capacity, the latter may seem attractive, but it has its own nuances, which will be discussed below.
- 🔄 Formatting: Select this item from the memory card menu to clean and create a file system.
- 📂 Portable storage: The card is used for photos, videos and music, apps stay on the phone.
- 📱 Internal Memory: The card becomes part of the system, allowing you to install applications on it.
⚠️ Note: When formatting a card as internal memory, it is encrypted and linked to a particular device, and you can't read it on another phone or computer without re-formatting and losing data.
Application transfer and work with files
If you choose to expand internal memory, the system will automatically start transferring some data and applications to the new drive, but not all applications support this feature. SD-Card for safety or performance reasons.
To manage files in MIUI It's got a powerful file manager built in. When you open Explorer, you'll see separate partitions for internal memory and SD-You can manually move folders of photos, music and documents, freeing up valuable space in the system.
To change the default save location for the camera, open the Camera app, click on the menu (three bars) and select the settings. SD-card – activate it so that new images immediately fall on the external drive.
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Use a file manager to clean your folder regularly DCIM/.thumbnails, If you take a lot of photos, as the cache of sketches can take up gigabytes of space even on the Internet. SD-map.
When you move applications through the Apps menu -> All Apps -> Selected App -> Memory, the transfer button may be inactive. This is normal behavior for system applications and some heavy gaming.
Possible problems and ways to solve them
Often, users are faced with a situation where the phone does not see the memory card. First of all, check whether the tray is tightly sitting. Sometimes oxidation of the contacts or dust can interfere with the connection. Wipe the contacts of the card with a soft dry cloth and try to insert it again.
If the card is detected but slow or has read errors, it may be corrupted or slow. Check the card on your computer with utilities like H2testw to find out the real volume and broken sectors. Also, the problem may lie in the file system: Android works best with exFAT or FAT32.
In some cases, re-formatting directly in the smartphone helps, but if the card is not detected on any device, it is likely that it has failed physically and needs to be replaced.
- ❌ Formatting error: Try formatting the card on PC into a format FAT32, Then put it in the phone.
- 🔋 Battery discharge: At very low charge, the phone may not supply power to the card slot.
- 🛠️ Mechanical damage: Check the tray for curled contacts.
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Most card definition problems are solved by formatting correctly in FAT32 or replacing the drive itself with a better one.
⚠️ Note: Do not remove the memory card while recording video or running applications that use files from an external drive.