You bought a new Xiaomi smartphone and noticed that there's less disk space than the specs promised? Or you want to move files but don't know where the internal memory is stored? This problem is familiar to many brand users. It's that manufacturers often reserve some of the memory for system needs, and the MIUI interface doesn't always intuitively show the real space allocation.
In this article, we will look at where internal memory is physically and logically located in Xiaomi phones (including Android One models), how to view it correctly through settings and file managers, and give practical tips on optimization. You will learn why only ~112 GB of storage is available on smartphones with 128 GB of memory, how data storage differs on devices with UFS and eMMC, and what to do if the system shows “memory is full”, although there are few files.
Physical location of internal memory in Xiaomi smartphones
The internal memory (also known as built-in storage) in Xiaomi phones is a chip soldered into the motherboard, and two types of memory are used depending on the model and year of release:
- 🔹 eMMC (Outdated Standard) – found in budget models before 2019 years (e.g. Redmi) 7A, Redmi Go Read/Write Speed ~100-200 MB/s.
- 🔹 UFS (Modern standard - used in devices from Redmi Note 8 Pro (2019) It's getting faster. 800-2100 MB/s (in Xiaomi) 13 Pro — UFS 4.0).
Physically, the memory chip is located under the back cover, next to the processor. For example, in the Poco X3 Pro, the UFS 2.2 chip is on the left of the battery, and in the Xiaomi 12T, it is under the GPU, access to it is only possible when the device is completely disassembled, which voids the warranty. For the average user, the logical memory allocation is more important, which we will discuss below.
Interesting fact: some flagships (such as the Xiaomi 13 Ultra) use dual-channel UFS memory, which doubles the speed of data exchange. This affects performance, but not the way files are managed.
How to view internal memory through MIUI settings
The easiest way to check the state of internal memory is to use the built-in MIUI tools.
- Open the Settings app (cog icon).
- Go to the About Phone section (in older versions – About the device).
- Select the item "Storage" or "Memory".
Here you will see a diagram of the distribution of memory by category: System, Applications, Photos and Video, Audio, etc. Pay attention to the “Other” line – often cached data and temporary files that can be safely cleaned are hidden underneath.
☑️ What to check in the "Storage" section"
Newer versions of MIUI 14+ add Deep Clean, which analyzes unnecessary files, including remnants of deleted applications, and can be triggered by clicking three dots in the upper right corner of the storage screen.
⚠️ Note: If the Storage section displays significantly less space than stated in the specifications (e.g. 64GB instead of 128GB), this may indicate a fake or firmware error. → The phone. → Model and compare with the official data on the Xiaomi website.
Viewing internal memory through file managers
The MIUI file system manager shows internal memory as the root directory /storage/emulated/0/. However, full access to partitions will require the granting of root rights or the use of specialized applications like Solid Explorer or FX File Manager.
Without root rights, you will see the following key folders:
- 📁 DCIM — photo and video.
- 📁 Downloads – downloaded files from the browser.
- 📁 Android – Application data (including cache).
- 📁 MIUI — System shell files (themes, wallpapers).
- 📁 Pictures, Music, Movies – Media Files.
To see hidden system partitions (e.g. /data or /system), you need to activate the developer mode and enable debugging over USB, but this is not recommended for inexperienced users, as it can cause crashes.
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For quick access to internal memory, connect your smartphone to your PC via USB-cable in file transfer mode (MTP). In Windows Explorer, the memory will appear as a removable disk.
| folder | Contents | Can we clean it? |
|---|---|---|
| Android/data | Application data (save games, settings) | Partially (only through the app settings) |
| Android/obb | Additional game files (cache) | Yes, if the game is deleted. |
| DCIM/.thumbnails | Photo and video miniatures | Yes (automatically regenerated) |
| MIUI/backup | Backups of the system | Unless you need to. |
Why is the available memory less than specified in the characteristics
This is one of the most common complaints users have. For example, on the Redmi Note 11 with 128 GB of memory after the first setup, ~112 GB is available. Where do the other 16 GB go?
The reasons are as follows:
- System partition (/system) – takes 4-8 GB (includes MIUI, Android and pre-installed applications).
- Section of the reconstruction section (/recovery) — ~1 GB for updates and resets.
- Cache and metadata – ~1-2 GB for the file system.
- Marketing rounding – manufacturers count 1 GB = 1,000,000 bytes, whereas the system shows 1 GB = 1,073,741,824 bytes (a difference of ~7%).
In addition, in some models (for example, Poco F3), some memory is reserved for dynamic RAM expansion (RAM Boost function), which further reduces the available space by 2-4 GB.
How to check the real amount of memory through ADB
⚠️ Note: If the difference between the declared and available memory exceeds 15-20%, This could be a sign of a fake drive. AIDA64 (Storage section – if the amount of memory in the Internal Storage field does not match the official data, the smartphone can be remarked.
How to Free Your Internal Memory: 7 Ways to Work
If the memory is full and you do not want to delete personal files, use these methods:
- App cache cleanup: Go to Settings → Apps → App management, select a program (like YouTube or Telegram) and click Clear Cache. Use Settings → Storage → Clear for mass cleaning.
- Transfer of applications to SD-map: B MIUI This function is limited to just a few applications. → Annexes → Select an application → Warehouse → Change. → SD-map.
- Remove duplicate photos: Use the built-in Gallery app → Albums → Duplicates or third-party tools like Files by Google.
- Disable auto-save media: In messengers (WhatsApp, Telegram) turn off automatic download of photos / videos in the chat settings.
For advanced users, you can reset the Wipe Cache Partition through the recovery mode, which will not delete personal data, but will clear the temporary files of the system. To get into recovery, turn off your phone and press Volume Up + Power.
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Regularly cleaning the cache and removing unused applications can free up to 10-15 GB of memory without losing important data.
Frequent problems with internal memory and their solutions
Xiaomi users often encounter the following memory-related errors:
| Problem. | Possible cause | Decision |
|---|---|---|
| Memory is full, but files are few | Hidden cache files or file system error | Cleaning through Settings → Storage → Deep cleaning or flashing |
| You cannot install an application ("lack of memory") | Memory fragmentation or partition restriction /data | Resetting to factory settings or using ADB for manual cleaning |
| SD-The card is not recognized as an internal memory. | Incompatible format (not exFAT/FAT32) | Formatting a card via phone in Settings → Warehouse → SD-map |
If the smartphone shows a message "Memory is damaged", this may indicate a hardware malfunction of the chip (often occurs after falls or moisture). ADB:
adb shell fsck /dev/block/mmcblk0p1It will check the file system for errors.
How to increase internal memory: from SD-maps to cloud solutions
If internal memory is catastrophically lacking, consider these options:
- 🔄 Use of the SD-Cards as internal memory (only for models with Adoptable Storage support:
- ☁️ Cloud Storage: Xiaomi Offers 5GB Free in Mi Cloud (Settings) → Xiaomi account → Mi Cloud.Alternatives: Google Drive (15GB), Yandex Disk (10GB).
- 🔌 OTG-drives: via adapter USB-C → USB-A You can connect a flash drive or an external one. SSD (SanDisk Ultra Dual Drive).