How to combine memory card with internal memory on Xiaomi Redmi 5 Plus: the complete guide

Owners of the Xiaomi Redmi 5 Plus often face a lack of internal memory, especially if the model is purchased with a minimum volume (32 GB), the solution is the use of the Adoptable Storage feature, which allows you to combine a microSD card with the internal memory of the smartphone, but this process has nuances, from choosing the right card to configuring parameters in MIUI.

In this article, you'll find a step-by-step guide to the Redmi 5 Plus (codename vince), memory card requirements, and how to solve common errors. We'll look at how combining is different from conventional formatting as a portable drive, and why some cards are not suitable for this procedure. If you want to expand your phone's memory without losing performance, read on.

Requirements for a memory card to combine with internal memory

Not every microSD card is suitable for Adoptable Storage. Xiaomi Redmi 5 Plus has strict requirements for speed and class of drive.

• 🔹 Speed class: minimum UHS-I (U1) class 10. Marked cards U3 or A1/A2 Preferably, they provide high read/write speed.
• 🔹 Capacity: from 16 GB to 256 GB. The optimal option is 64-128 GB (balance of price and performance).
• 🔹 File system format: the card must be formatted in exFAT or FAT32 (But the phone itself is reformatting it into ext4 unionize).
• 🔹 Brand: avoid no-name cards. Recommended manufacturers - SanDisk, Samsung EVO, Kingston Canvas.

⚠️ Note: If you use a Class 4 or lower card, the system may give an error "The card is too slow." In this case, the unification will not be possible. Also note that after the procedure, the card will not be retrieved without losing data - it will become part of the internal memory.

Preparing the phone before combining memory

Before starting the procedure, several steps must be taken to avoid errors and data loss:

1. Back up important files. Once combined, the card will be formatted and all data on it will be deleted.
2. Charge the phone to at least 50%. The process can take 10 to 20 minutes, and interruption due to battery discharge will lead to failure.
3. Update MIUI to the latest version. In older firmware (MIUI 9 and below), Adoptable Storage may not work well.
4. Remove unnecessary files from internal memory. Once combined, the system will automatically transfer some of the data to the map, but this requires free space.

⚠️ Note: If the device protection function is activated on the phone (in Settings) → Additionally. → Privacy, you have to shut it down temporarily, otherwise the system may block access to the combined memory after restarting.

Step-by-step: how to combine a card with a phone memory

Now, to the basic process, follow the instructions carefully, and any error can result in loss of data or card failure.

1. Insert the memory card into the Redmi 5 Plus slot, make sure it is recognized by the phone (the notification "New drive detected") will appear.
2. Open the Settings and go to the Memory section.
3. Click on the line with the memory card (for example, "SD-map: 64GB").
4. Select Settings (three dots in the upper right corner) → Format as internal memory.
5. Confirm the action. The system will warn you that all data on the map will be deleted. Click "Erase and format".
6. Wait until it's finished. The phone will reboot, and then the card will become part of the internal memory.

✅ Once you successfully combine in the Memory section, you will see a single partition (e.g., "Inner Memory: 96 GB" - the amount of internal memory and cards). Now applications and files will automatically be saved to the combined drive.

Configuring data transfer to the combined memory

By default, MIUI does not always optimally distribute data between internal memory and the card. To make the most of the combined drive, follow the following steps:

• 📱 Application Transfer: Go to Settings → Annexes → All applications, select the desired and click "Storage" → "Change" → "SD-map".
• 📁 File Transfer: Use a file manager (such as Mi File Manager) to move photos, videos, and documents to the map manually.
• 🔄 Automatic Save: In Camera Settings (Settings) → Camera. → Select the place of preservation "SD-map".

⚠️ Note: Some system applications (such as Mi Home or Google Play Services) cannot be transferred to a map, and avoid storing data on applications that require high read speed (such as games with heavy graphics).

Typical errors and their solution

When combining memory on Redmi 5 Plus, users often encounter problems, and here are the most common errors and ways to fix them:

• 🚫 "Map damaged": Try formatting the card on PC in FAT32, Then repeat the procedure on your phone. If it doesn't work, the card is faulty.
• 🚫 "Not enough space to create a partition: Free up ≥1GB on internal memory or use a smaller card.
• 🚫 "Map too slow: Replace the map with a model class U3 or A1.
• 🚫 Phone doesn't see card after you merge: Restart the device. If the problem persists, reset (Settings) → Additionally. → Recovery and discharge).

Critical error: if after the combination the phone stopped turning on or got stuck on the MI logo, this means that the card was removed during the procedure or there was a power failure, in which case you will have to reset via Fastboot (hold Power + Volume Down when turned on).

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If the card is slow after the combination, try to disable it in Settings. → Memory. → SD-map → Turn it off, then plug it back in. This sometimes caches and speeds up reading.

How to cancel the merger and return the card to its original state

If you decide to split the memory back, do so carefully so as not to lose the data:

1. Go to Settings. → Memory. → SD-map.
2. Click on “Format as Portable” (or “Disable” in newer versions of MIUI).
3. Confirm action. The phone will alert you that all data on the map will be deleted.
4. After formatting, remove the card and paste it into the PC for verification.

⚠️ Warning: If you simply retrieve the card without first turning off the settings, the phone may stop booting".

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The combined card cannot be used on other devices, it is encrypted and linked to a specific phone. If you sell a Redmi 5 Plus, be sure to share the memory in advance!

Tips for optimizing the work of combined memory

To ensure that the combined memory is stable, follow these recommendations:

• 🔋 Clean the app cache regularly (in Settings) → Memory. → Cleaning up. It'll reduce the load on the map.
• 📉 Don't fill up your memory 100%. ≥10% free space for stable work.
• 🔄 Use the card only on this phone. Connecting to a PC or other device can cause errors.
• 🛡️ Turn off automatic app updates (in the Play Market) → Settings) if the card is slow.

💡 Useful Life Hack: If you often shoot videos in the video 4K, Keep them on internal memory and your photos on a map, which will reduce the load on the microSD and extend its lifespan.

FAQ: Frequent questions about memory consolidation on Redmi 5 Plus