How to insert a memory card in Xiaomi Redmi 4X: instructions with photos and nuances

Why you need a memory card in Xiaomi Redmi 4X

Xiaomi Redmi 4X — One of the most popular budget smartphones of the brand, released in 2017 Despite the modest characteristics of modern standards (16/32 GB of internal memory, still in use today because of its reliability and memory expansion, and the microSD card is a real salvation when internal storage is not enough for photos, videos or applications.

However, many users have difficulty first installing the drive: where is the slot, how to insert the card correctly so as not to damage contacts, and what formats are supported? In this article, we will discuss the process from A to Z - taking into account the features of the hybrid slot in Redmi. 4X, which combines the space for the second SIM-microSD cards.

If you've never opened a card tray in your Xiaomi or you're afraid of breaking something, don't worry. Following our instructions, you'll be able to do it in 2 minutes. And to avoid the typical mistakes, we've put all the warnings and life hacks in one place.

What kind of memory cards does Xiaomi Redmi 4X support?

Before buying a microSD, make sure it is compatible with your smartphone.Redmi 4X works with cards of the following standards:

• 📌 MicroSD format only (not miniSD or microSD) SD!). Supports microSDHC (up to 32 GB) and microSDXC (up to 256 GB) versions).
• 🔢 Maximum volume: officially up to 128 GB, but users successfully use 256 GB (exFAT formatting may be required).
• ⚡ Speed class: Class recommended 10 or UHS-I (U1/U3) videotape 4K. Class cards 4 or 6 They can slow down when recording Full. HD.
• 🔄 File system: by default, the smartphone formats cards into FAT32, For volumes over 32 GB, it is better to choose exFAT.

Important: Redmi 4X It has a hybrid slot, which means you can use either of the two. SIM-card SIM + microSD, insert two at the same time. SIM And the memory card's off!

⚠️ Note: Do not buy memory cards labeled "For App Performance" (A1/A2) — They are optimized for Android applications, but in Redmi. 4X They won't give you speed boosts because of iron restrictions.

Where is the memory card slot in Xiaomi Redmi 4X

Unlike the flagship models of Xiaomi, where the card slot can be located on the upper or side edge, in Redmi. 4X It's on the left end of the body, and you're looking for a little hole with a metal rim, which is a tray for you to use. SIM-microSD cards.

To remove the tray, you'll need a paper clip or a special needle key that came with your smartphone, and if you don't have the key, any thin metal wire (such as a paper clip) will do.

If you can't find the hole, flash a flashlight -- it should shine a little. -- On some versions of Redmi 4X (For example, for the Indian market, a slot can be designated by a small icon. SD-map.

Step-by-step: how to insert a memory card

Now, to the process itself, follow the instructions carefully so that you don't damage the slot contacts or the card itself.

1. Turn off your smartphone. It's a must-do! By inserting a card when your phone is on, you risk damaging the drive's file system or causing the memory module to malfunction.
2. Remove the card tray. Put the paper clip in the hole on the left end and press a little until the tray is extended. Don't use excessive force, because the mechanism should be triggered by a light press.
3. Put the card in the tray. There are two slots on the tray: 📱 The top one is for nano-SIM (if you use two). SIM, Put the second one in). 💾 Lower for microSD (or second) SIM, If you don't need a memory card).

The card should lie with golden contacts down, beveled angle to itself (see the diagram on the tray).

Put the tray back in. Push it carefully into the slot before you click. Make sure the tray sits flat -- if it protrudes, the map is set incorrectly.

Turn on your smartphone. When you boot up, you'll notice a new memory card, and if you don't, check if you've inserted the microSD correctly.

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If the tray doesn't fit in, don't force it! Pull out the tray and see if the card is skewed. Often the problem is that the microSD is inserted "upside down."

Once you turn on the card for the first time, the smartphone might suggest formatting the card, and if it's a new microSD, you can agree. If it already has data on it, copy it to your computer first, because formatting will delete all the content.

How to set up a memory card after installation

Just inserting a microSD isn't enough -- you need to configure it right so that the smartphone can use the extra space.

1. Formatting (if required): If your smartphone offers to format a card, choose as a portable device (for storing files) or as internal memory (for installing applications), the second option is less reliable - when you extract the card, the applications will stop working.
2. To free up internal memory, transfer to a microSD: 📸 Photo and video: Open the Gallery → Settings → Storage and select memory card as default save location. 🎵 Music and files: In any file manager (such as Mi File Manager) move folders manually. 📱 Annexes: C Settings → Select the program and click Transfer to SD (Not all applications support this function).

Speed check: Install the A1 SD Bench app from Google Play to test read/write speeds. If the values are below 10 MB/s, the card is too slow for video or gaming.

⚠️ Note: If you choose to format the card as internal memory, it cannot be retrieved and used in other devices without completely erasing the data. Some apps (such as WhatsApp or banking software) may also refuse to work with internal microSD for security reasons.

For convenience, create folders on the memory card by categories: Photos, Music, Documents, etc. This will simplify the search for files and prevent chaos in the storage.

Common Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when working with memory cards, and here are the most common problems and solutions:

• 🚫 Smartphone can't see the card: Check if the microSD is inserted correctly (contacts should be on the bottom). Reboot your phone. Try the card on another device - if it doesn't work, the drive is faulty.
• 🔄 The card is constantly turned off: The slot or card contacts are contaminated - wipe them with a soft cloth soaked in alcohol. The tray is not fully inserted - remove and install again. The low-quality card - replace with a reliable brand (SanDisk, Samsung, Kingston).
• ⚠️ Formatting error: If your smartphone writes “Map damaged”, format it on your PC FAT32 Or exFAT. Use the official utility. SD Card Formatter from SD Association.

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If the memory card is no longer identified after the phone falls or moisture gets in, the problem may be damage to the slot contacts, in which case repairs are required at the service center.

Another common mistake is buying fake memory cards, and there are many storage devices on the market that have lower real capacity (for example, instead of 128 GB in fact 16 GB), check the card using H2testw (Windows) or FakeFlashTest (Android).

How to Remove a Memory Card Without Losing Data

Removing the microSD from the Redmi 4X is as neat as inserting it. Failure to follow the rules can damage the files or the drive itself.

1. Save all files open. Close applications that may use the card (music players, gallery, documents).
2. Mount the card in the settings. Go to Settings → Storage → Memory Map and click Extract (or Disable) to prevent file system failures.
3. Turn off your smartphone. Although some users pull the card hot, it's risky to damage the filesheet.
4. Remove the tray. Use the paper clip as you would when you installed it, and carefully pull out the card.

If you often move the card between devices (for example, between your phone and your camera), use a microSD adapter instead of constantly retrieving it.

⚠️ Warning: Never remove a memory card while recording data (e.g., while shooting videos or copying files) this may result in file loss or physical damage to the drive.

FAQ: Answers to Frequent Questions