Where in the phone Xiaomi is storage: full analysis

Owners of Xiaomi, Redmi and Poco smartphones often face a situation where the device reports a lack of space, but visually the user does not see where exactly gigabytes go. Understanding the structure of the Android file system, which uses the shell MIUI or HyperOS, is the key to effective management of the device. Internal storage in modern Xiaomi models does not have a separate physical memory card, but is a flash memory chip soldered on the motherboard.

Confusion often arises from the system dividing the space into logical partitions hidden from the ordinary view, and custom folders available for modification. If you are used to the old file management system, where there was a clear section between the phone and the map, in today's Android 12-14 realities, the boundaries are blurred. Let's figure out where your data is physically and softwarely located.

To start with, it's worth clarifying that access to system files is restricted to superuser rights. The average user only sees the user partition, often referred to as "Internal Drive." This is where most applications' photos, downloads, and data are stored, and understanding this architecture will help avoid accidentally removing critical components.

Physical location and memory architecture

Physically, the memory chip, which acts as a hard drive, is located inside the smartphone case, directly on the main board. In most modern Xiaomi models, this chip is soldered next to the processor to ensure high speed data exchange, access to it without special equipment and soldering skills is impossible, and is not necessary for everyday use.

From the operating system perspective, the entire space is divided into several logical volumes: the first is the system partition, reserved for Android and the manufacturer’s shell, its volume is fixed and depends on the firmware version, the second partition is the same user storage, the volume of which is indicated on the box (net of system files).

⚠️ Warning: Attempts to manually resize the system partition through the engineering menu can cause the device to fail completely (brick.

It is important to understand the difference between RAM (RAM) permanent (ROM). RAM is cleared when you turn off your phone and is used for running applications, but storage stores data forever even if the battery is completely drained.

Some older models supported MicroSD card installation, which divided physical storage into internal memory and external storage, but the flagship and many mid-budget models of recent years lacked a card slot, making internal space management an even more critical skill.

How to find storage through standard settings

The easiest and safest way to assess memory occupancy is to use built-in tools. The MIUI shell provides detailed statistics that help you understand what exactly occupies space.

Go to the main settings menu and find the "About Phone" item, which shows general information, but for detailed analysis, click on "Storage" (or "Memory"), the system instantly counts the occupied blocks and gives a color diagram of the data distribution.

In this menu, you'll see a breakdown by category: images, videos, audio, documents and applications. By clicking on any category, like Apps, you'll be placed in a list sorted by size, which allows you to quickly find the "heavy" programs that you might have forgotten existed.

The “Other” item is worth paying special attention to, and often it hides temporary files, remnants of deleted programs, or cache that the system cannot automatically classify, and cleaning this partition through the built-in Cleanup tool is usually safe and effective.

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Use the built-in Security → Cleanup app to quickly remove junk files. This is Xiaomi’s regular tool that knows the structure of the system better than any other third-party counterpart.

File Management: Explorer and Hidden Folders

To get deeper into the file structure, you need to use the File Manager app, which is pre-installed on every Xiaomi device, and unlike the settings, here you see a real file system, similar to folders in Windows.

When you go to the root directory of internal memory (often labeled /storage/emulated/0 or just Internal Drive), you'll see a set of folders. Some of them have the names of the installed applications, like WhatsApp, Telegram or DCIM for the camera, and that's where your pictures are physically located.

Many users are unaware of the existence of hidden folders, whose name begins with a dot, and to see them, you need to open the Explorer menu (three bars or dots) and activate the Show Hidden Files switch, which may contain configuration files or cache of certain services.

Be very careful when working with the Android folder, which contains data and obb subfolders, where the game cache and program settings are stored, and removing the contents of this directory will reset the application settings or completely fail before the data is reloaded.

⚠️ Warning: Never delete.apk files or system files with obscure names from the root folder unless you are 100% sure of their purpose.

Hidden sections and technical storage

In addition to the space visible to the user, there are hidden partitions in the Xiaomi phone that can only be accessed through special modes or root rights, and these areas are reserved for bootloader, recovery and modem.

The average user doesn't have to invade these areas, but if you're flashing a device, you might come across the term misc or persist, which stores the calibration data of the sensors, IMEI-codes and unique device identifiers.

There's also a partition called Virtual Memory, or ZRAM, which is a technology that reserves some of the fast internal storage for RAM, and when there's not enough physical RAM, the system dumps the background application data there to keep it from crashing.

Understanding these hidden areas helps us understand why the actual amount of memory available is always less than the manufacturer’s stated amount of storage, and the system reserves a significant chunk of the disk to suit its needs, ensuring stable operation even when the user partition is filled.

The problem of memory separation in older versions MIUI

Owners of older Xiaomi smartphones (released before 2018-2019) may have faced artificial memory splitting, dividing the drive into two parts: one for installing apps, the other for user files, often leading to the paradox that there is space for photos, but the application is not put because the quota in the system partition has run out.

Fortunately, modern versions of Android and MIUI have abandoned this practice, now using a single address space, but if you've switched from an old phone to a new one, the habit of looking for space in different shopping carts can be confusing.

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In modern smartphones Xiaomi memory is the same: files, applications and system use one common pool of gigabytes, which eliminates the problem of lack of space in one partition if there is free space in another.

If you are the owner of an old device and faced with a lack of space for installing programs, the only way out is often to reset to factory settings or transfer data to a memory card (if supported), freeing up the internal partition.

Storage analysis and cleaning tools

For a deep analysis of what takes up space, standard tools may not be enough. There are specialized utilities that visualize the file system as a map, where the square size corresponds to the file size, which allows you to instantly find forgotten videos or error logs.

One of the most effective cleaning strategies is to work with the cache of messengers. Telegram and WhatsApp tend to accumulate gigabytes of viewed media files. In the settings of the applications themselves, there is a section called Data and Memory, where you can clear the cache without deleting correspondence.

Also worth checking is the.Trash or Recycle Bin folder in the gallery and explorer. Deleted files often stay there for 30 days, continuing to take up precious space.

⚠️ Warning: Before using aggressive cleaner software (Clean Master and analogues), make sure they don't delete important logs or saved passwords. Xiaomi's built-in tools are usually safer.

Frequently Asked Questions (FAQ)