Did you forget your Xiaomi RedmiBook 4 password or did your laptop lock up after the update? The situation is familiar to many: you type in the usual combination, but the system stubbornly does not accept it, and the screen flaunts the words "Account disabled" or "Incorrect password." In a panic, you start to go through the options, risking to permanently lock the device.
In this article, we will look at all the working ways to unlock RedmiBook 4, from the simple (via Mi Account) to the radical (reinstall Windows). Importantly, the methods vary in complexity and consequences. For example, resetting through the BIOS will save data, and reflashing it will erase it forever. We will specify the risks of each option and give checklists for preparation.
Before you start, answer the key question: do you need to save files on your laptop or not? If the data is critical (documents, photos, projects), start with methods that do not affect the system partition (methods 1 and 2). If the laptop is "clean" or backup is available, feel free to go to Windows reset (methods 3-5).
1 Unblocking through your Mi Account (if linked)
The safest way to use a Xiaomi account is if you have previously linked your laptop to your Mi Account, which works even when your Windows screen is locked, as authorization is done at the MIUI level (if your laptop is based on MIUI for PC) or through Xiaomi servers.
How to check if your laptop is linked to your account?
On the RedmiBook 4 screen, the bottom of the screen can show "Log in with Mi Account" or "Forgot password?" (if the system is in English), if it is not, the method will not work.
- 🔑 Go to account.xiaomi.com from another device (phone, tablet).
- 📱 Enter your username (email or phone) and password from your Mi Account.
- 🔄 In the Devices section, find your RedmiBook 4 (may appear as a Laptop Model). LM or by serial number).
- 🔓 Click "Unlock Device" and follow the instructions (confirmation may be required by SMS email).
Unlock time: 5 minutes to 24 hours (depending on the load on Xiaomi servers).
Is the data saved? Yes, all files and settings remain intact.
⚠️ Note: If you don’t remember Mi Account data, don’t try to find a password – after 5 unsuccessful attempts, the account will be blocked for 24 hours, in which case you will have to restore access through Xiaomi support (passport and purchase check are required).
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If you have two-factor authentication enabled in Mi Account, prepare backup codes or access to the Google Authenticator app in advance. Without them, unlocking through your account will not be possible.
2. Password reset via BIOS (without data loss)
If Mi Account is not tied or you don’t remember the login details, the next step is to reset your password via the BIOS. This method only works on RedmiBook 4 with Windows 10/11 installed and System Recover enabled.
Why is this method safe?
When you reset through the BIOS, you don't format the disk, you just delete the user's password. All Windows programs, documents, and settings will remain in place. However, this method requires physical access to the laptop and the ability to work with Command Prompt.
- 🔌 Turn off the laptop (press the power button for 10 seconds).
- 🔄 Turn it on and hit it right away. F2 or Del (depending on version) BIOS), to enter the settings menu.
- 💾 Go to the Boot tab and install it. USB Drive to the top of the loading list.
- 💿 Connect the bootable flash drive with Windows (you can create on another PC via Media Creation Tool).
- 🔃 Save the settings (F10) and reboot.
After downloading from the flash drive:
- Select the language and click System Restore (bottom left).
- Go to Diagnostics → Additional Parameters → Command Prompt.
- Enter the commands in turn (click Enter each): diskpart list volume exit copy c:\windows\system32\utilman.exe c:\ copy /y c:\windows\system32\cmd.exe c:\windows\system32\utilman.exe
- Reboot your laptop (wpeutil reboot).
- On the Windows login screen, press Win + U – Command Prompt with administrator rights will open.
- Enter the command to reset the password: net user [user name] [new password] (e.g. net user user user 123456).
Runtime: 20-40 minutes (depending on the speed of the flash drive).
Difficulty: Medium (requires command line knowledge)
⚠️ Note: If after resetting the password, the laptop does not boot or an error appears 0xc000000f, So you've copied files incorrectly to diskpart, in which case you'll have to restore Windows via a flash drive (see method 4).
Create a bootable flash drive with Windows 10/11|Find out the user name (displayed on the login screen)|Connect the laptop to the network (in case of a long operation)|Have a backup of important files (just in case)-->
3.Use of the Xiaomi Laptop Unlock Tool (official method)
Xiaomi has released a special software for unlocking the RedmiBook series of laptops – Xiaomi Laptop Unlock Tool. This tool works only on original devices with intact firmware and requires proof of ownership.
Where do I download the tool?
The official utility can be found on the Xiaomi support website ("Unlock Tool" section).
Advantages of the method:
- ✅ It works without data loss.
- ✅ Officially supported by Xiaomi.
- ✅ Does not require technical skills.
Disadvantages:
- ❌ Requires a second computer.
- ❌ Not all firmware versions work (RedmiBook 4 2023 may have restrictions).
| Laptop model | Support for Unlock Tool | Proof of ownership is required |
|---|---|---|
| RedmiBook 4 (2020) | Yes. | No (serial number is sufficient) |
| RedmiBook 4 Pro (2021) | Yes. | Yes (SMS or purchase check) |
| RedmiBook 4 (2022–2023) | Partially (depending on region) | Yes (passport + check) |
| RedmiBook 4 with custom firmware | No. | — |
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The official Xiaomi Laptop Unlock Tool is the most reliable way, but it is only suitable for original devices with intact firmware.
4. Reinstall Windows (full reset)
If previous methods didn’t work or you’re not afraid to lose data, the radical way is to reinstall Windows, which is guaranteed to unlock RedmiBook 4, but all files on the system drive (C:) will be deleted. Prepare a backup if you have access to another PC in advance.
What you need:
- 💿 Bootable flash drive with Windows 10/11 (minimum 8 GB).
- 🔌 USB-hub (if there is only one port on the laptop) USB-C).
- 📄 Windows activation key (if the laptop is not activated by a digital license).
Step-by-step:
- Create a bootable flash drive on another PC (for example, via Rufus).
- Connect the flash drive to RedmiBook 4 and press the F12 when turned on to open the download menu.
- Select your flash drive and press Enter.
- In Windows Installer, click "Install" → "Selective Installation".
- Delete all partitions on disk 0 (usually Disk 0 Section 1, 2, 3...) and click Next.
- Wait until the installation is completed (20-60 minutes).
Attention, after reinstallation:
- 🔄 The laptop will return to factory settings.
- 🔑 The password will be reset (by default it is not).
- 📥 You will need to re-install drivers (download them in advance from the Xiaomi website).
⚠️ Note: Some RedmiBook 4 models may lose the Fn key functionality after reinstalling Windows, due to the lack of Xiaomi Hotkey drivers. Install them manually from the Drivers for RedmiBook 4 package on the official website.
How to recover data after reinstalling Windows?
5 Unlocking through Safe Mode (if available)
A little-known, but sometimes working, way is to log into Safe Mode, which is good if Windows is booting but locks you off the login screen, and Safe Mode allows you to create a new user with administrator privileges and reset your password.
How to Sign in to Safe Mode on RedmiBook 4:
Further action:
- Click "Apply" and restart the laptop.
When this method doesn't work:
6. Contact the Xiaomi Service Center
If none of these methods work, the last option is to go to the official service center.
What to bring with you:
- 📄 Passport (for proof of identity).
- 🛒 Check or warranty card (if the laptop is guaranteed).
- 📱 Laptop box (it has a serial number).
Cost and timing:
| Type of lockdown | Unlocking time | Approximate cost (RF, 2026) |
|---|---|---|
| Windows Password | 1-3 days | 1 500–3 000 ₽ |
| Password BIOS | 3-7 days | 3 000–5 000 ₽ |
| Blocking Mi Accounts | 5-10 days | 4 000–7 000 ₽ |
Where to find Xiaomi Service Center?
Official partners are listed on the Xiaomi Service website. Before visiting, check by phone if they are engaged in unlocking laptops - some centers specialize only in smartphones.
⚠️ Note: Do not go to informal workshops promising "quick unlock for 500 rubles", there is a high risk of getting a laptop with damaged firmware or installed pirated Windows. Official services give a guarantee for work (usually 3-6 months).