Xiaomi’s Handbook App: What It Is, Why It Needs, and How It Works in 2026

If you own a Xiaomi, Redmi or a smartphone POCO, You've probably noticed a mysterious Handbook app on your installed list, pre-installed on all devices running it. MIUI, But not all users understand its purpose, and some even try to remove it as unnecessary "junk", unaware of the hidden possibilities.

In fact, the Handbook is not just a manual, but a full-fledged interactive assistant that contains up-to-date information about your device, customization tips, and even diagnostic tools. In this article, we will go into detail what this application is, how to use it to the maximum benefit, and why it is not always worth removing.

It's worth noting that the functionality of the Handbook has evolved significantly in recent years. PDF-This is a dynamic service with integration into MIUI, You'll learn how to make the most of it, and what hidden features are only available through this application and nowhere else in the system.

What is a “Handbook” on Xiaomi and why you need it

The Handbook app (original Chinese for “User Guide”) is Xiaomi’s official tool that replaces traditional paper instructions. It is installed by default on all firmware devices. MIUI (starting with MIUI (9) and contains:

• 📖 Basic information about the smartphone: technical specifications, location of buttons, sensors and connectors.
• ⚙️ Step-by-step instructions for setting up key features (from connecting to Wi-Fi to activating) NFC).
• 🔧 Troubleshooting Tips (such as what to do if the camera isn’t working or the battery is running down quickly).
• 📱 Update: information about new features after upgrade MIUI.

It's important to understand that the Handbook is not a static document, but a dynamic application that updates with the firmware. MIUI 14 to HyperOS, the Handbook will have new sections dedicated to changes in the interface and management.

The app is also closely integrated with Xiaomi system services, for example, if you’re trying to set up Dual Apps or Child Mode, the Guide can automatically offer the right instruction when you interact with the feature.

⚠️ Note: On some devices (especially global firmware versions), the Handbook may be called User Guide or Manual.

Where to find and how to open the “Handbook” on Xiaomi

You can find the application in several ways, depending on the version MIUI and smartphone models:

1. Through the Apps menu: Scroll through the list of installed programs – the Handbook icon usually looks like a blue book with a white question icon.
2. Through Search: Swipe down on the home screen, type in the search box Directory or Manual.
3. Through Settings: Go to Settings → The phone. → Directory (on some devices, the path may be different).

If you can't find the app, it's probably hidden or disabled, so you can get it back:

1. Open Settings → Applications → Application Management.
2. Slip on three dots in the upper right corner and select Show All Apps.
3. Find the Manual (or Manual) in the list and include it.

On HyperOS devices (e.g. Xiaomi 14 or Redmi) K70) The Handbook interface is more minimal, but the functionality is the same. Now it automatically adjusts to the theme of the system design.

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If the Handbook doesn't open, try clearing its cache in the app's settings. This often helps with freezes or errors.

The main functions of the "Directory": what the application can do

Many users mistakenly believe that the Handbook is only for reading instructions, but it is actually much more powerful than that:

One of the most useful functions is to diagnose the equipment, for example, if you don't have a job. NFC, You can run the test right in the Handbook and see if there's a problem in the hardware or in the settings:

1. Open the Handbook.
2. Go to the Diagnostics (or Device Test) section.
3. Select the desired component (for example, NFC gyroscope).
4. Follow the instructions on the screen.

Another hidden option is access to service codes, and some versions of the Handbook have a section called Secret Codes that lists useful combinations for logging into the engineering menu (e.g. ##4636## for battery information).

⚠️ Note: Not all service codes are secure. Using commands like ##7780## (factory reset) can cause data loss!

The hidden possibilities of the “Directory”, about which few people know

Most users don't even realize that the Handbook can be useful for more than just reading instructions, but here are a few non-obvious features that favorably distinguish it from standard applications:

• 🔍 Keyword Search: At the top of the screen, there is a search bar where you can type in any query (e.g., “how to enable debugging by using the search engine”). USB» Or "gesture settings" -- the system will show relevant sections.
• 📡 Offline access: All information is stored locally – instructions will be available even without the Internet (relevant for travel).
• 🔄 Content Update: When a new version is released MIUI «The directory automatically downloads current manuals.
• 🛠️ Quick access to settings: Some sections have buttons to instantly navigate to the desired menu (for example, directly to settings). NFC or batteries).

One of the most interesting hidden features is the developer mode. → For developers, you will find detailed instructions for activation. USB-debugging, unlocking OEM Unlock and even working with ADB. This is especially useful for those who want to stitch up custom recovery (TWRP) or get root access.

Another life hack: if you lost a box from a smartphone, in the “Directory” you can find the serial number, IMEI And other important information about the device:

1. Open the Handbook.
2. Go to the About Phone or Device Info section.
3. Slip on More - here will be all the data, including the firmware version and the processor model.

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"The book is the only place in the MIUI, where you can officially recognize the communication standards supported by the device (for example, 5G-ranges or versions of Wi-Fi 6).

How to remove the Xiaomi directory (and whether it’s worth it)

Despite its usefulness, some users want to get rid of the Handbook, considering it unnecessary, and you can delete it, but there are nuances:

Method 1: Disconnect (without root)

1. Go to Settings → Applications → Application Management.
2. Find the Manual.
3. Tap Disable (or Remove Updates if the Remove button is inactive).

Method 2: Complete removal (root or root required) ADB)

1. Connect your phone to your PC and activate it. USB-debugging.
2. Enter the command line: adb shell pm uninstall --user 0 com.miui.manual

⚠️ Note: Deleting the Handbook may cause problems when contacting Xiaomi Service Center.

Should I remove it?

• ✅ If you are a user and do not need instructions.
• ❌ Not: If you frequently set up new features or plan to contact the service.

Alternatives to the “Directory” on Xiaomi: what to use instead

If you have deleted the "Directory" or you do not like it, you can use alternative sources of information:

• 🌐 Xiaomi official website: Support section with manuals for each model (mi.com/support).
• 📺 YouTube channels: Many bloggers (e.g. Xiaomi Today or TechDroider) shoot detailed video tutorials.

But the official Handbook has one key advantage: it's integrated with firmware. MIUI There is a function about which there is no information on the Internet, then in the “Directory” it will be described immediately after the update.

For owners of devices on HyperOS, there are few alternatives, since the new firmware is very different from the other devices. MIUI, And many of the third-party guides are not yet adapted.

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If you're looking for instructions on a specific feature, try Google querying "setting [function] to [smartphone model] site:c.mi.com." This will help you find official guides.

Frequent problems with the "Directory" and how to solve them

Sometimes the app doesn't work properly, and here are the most common problems and solutions.

If the Handbook shows information in an incomprehensible language, try changing the system language:

1. Open Settings → Additional → Language and input.
2. Choose Russian (or other language you need).
3. Reset the device.

After the update MIUI No new sections appear in the "Directory", try to manually update its data:

1. Open the Settings. → Annexes → Handbook.
2. Slip three dots in the corner and select Remove Updates.
3. Run the "Directory" again - it will automatically download the current version.

FAQ: Answers to Frequent Questions About Xiaomi’s Handbook