Owners of the Redmi 4X series’ budget-friendly and reliable smartphones often face the challenge of gaining full control of their device. The standard MIUI operating system, despite its functionality, has a number of limitations that prevent custom firmware installation, full system debris removal, or the use of specific modules, which is why the question of how to unlock the bootloader remains one of the most popular in the community of enthusiasts.
The Bootloader unlocking procedure is an official method provided by Xiaomi itself, but it requires careful preparation and timelines. Wrong actions can lead to a loss of warranty or, in the worst case, a “brick”. In this article, we will discuss each step in detail, from linking an account to successfully completing the procedure through an official tool.
Before you start taking action, it is important to realize that unlocking the bootloader will inevitably entail the complete removal of all data from the device. All photos, contacts and applications will be erased without the possibility of recovery by standard means.
Preparation of the device and account Mi
You should start with setting up the smartphone itself, because without properly linking the account to the hardware of the device, further steps will not be possible. SIM-card with mobile internet working, as the link is by phone number. Go to the settings and make sure you are logged in to your Mi Account, which will be used to unlock.
Then you need to activate the developer mode. To do this, go to the Settings → About the phone and find the MIUI version. Click on it 7-10 times in a row until the notification “You became a developer” appears. After that, a new section for developers will appear in the additional settings menu, where you need to enable debugging over USB.
- 🔑 Enable Factory Unlocking in the Developer Menu.
- 📱 Make sure that Mi Unlock status is displayed "Account added".
- 🌐 Check a stable Wi-Fi or mobile network connection.
Special attention should be paid to the status of the binding. The Mi Unlock Status menu may require a network connection for verification. If the system says that the account is not tied, check the Internet connection and try again. Without successful status display, the "Addd" utility on the computer will not allow you to start the process.
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Use the same one. SIM-The card and the same Mi Account throughout the process. SIM-cards in the phone before the waiting period expires can reset the timer of the binding.
Installation of drivers and utilities Mi Unlock
To interact with a smartphone at the software level, you need a personal computer running the Windows operating system. It will require installing a specialized Mi Unlock Tool. You can download it only from the official website miui.com/unlock, since third-party versions may contain malicious code or work incorrectly.
In addition to the utility itself, the right drivers are critically important. ADB and Fastboot. 10 or 11 automatically installs the basic drivers, but for stable operation in bootloader mode, it is better to use the official Xiaomi package USB Driver. If the device manager, when connecting the phone in Fastboot mode, defines the device as "Unknown" or"QHSUSB_BULK", So the drivers are incorrectly installed.
1. Download the Mi Unlock archive from the official website.
2. Unpack the archive in the root of the C disk (the path should not contain Cyrillic).
3 Run the file miflash_unlock.exe on behalf of the administrator.Once you start the program, log in to your account using the same data you have on your phone. The utility will check your account status and confirm it is on the approved list. If the program requires an update, agree, as older versions may not support the new MIUI security protocols.
☑️ Pre-launch check
Translation of the smartphone to Fastboot mode
The key to the whole procedure is to enter a special Fastboot mode. In this mode, the smartphone does not load the operating system, but allows the computer to directly interact with the bootloader. 4X The procedure is standard: completely turn off the device, then press the volume button and, holding it, connect. USB-computer-wire.
The Mi Bunny logo, which repairs the android, will appear on the screen, with the words "FASTBOOT". If the screen is black or there is a picture with a cable (charging mode), then the volume button was pinched too late or too early. Unplug the cable, turn off the phone and try again, changing the time of the press.
⚠️ Note: If instead of Fastboot, the phone turned on in normal mode, then the bootloader has already been unlocked earlier, or you accidentally pressed the power button instead of volume.
Once you successfully log in to Fastboot mode, your computer must make a new device connection sound. In the Device Manager, Android Bootloader Interface should appear in the "Android Devices" or "Ports" section. If there's a yellow exclamation point, reinstall the drivers manually, indicating the path to the driver folder in the device properties.
Unlocking process and waiting timer
When the phone is in Fastboot mode and connected to a PC, click the "Unlock" button in Mi Unlock. The program will begin checking the status of the device and account. Here most users are faced with a message about the need (waiting). Xiaomi's security system requires that a certain time has elapsed from the moment of attachment of the account, usually from 7 to 168 hours.
If you see a timer, don't try to bypass it by re-assigning or resetting it, it will only increase the latency or block the ability to unlock forever. Just wait until the end of the time specified in the clock, during which time you can use the phone as normal, the main thing is not to log out of your Mi Account.
- ⏳ The standard waiting time is 168 hours (7 days).
- 🔄 Sometimes the timer can reset if you turn off the phone or change the phone. SIM-map.
- 🚫 Attempts to bypass the timer through third-party services often lead to blocking IMEI.
After the waiting time, repeat the login procedure to Fastboot and press "Unlock" again. This time, the program will issue a warning that all data will be deleted. Confirm the action, and the unlock process will begin, which will take a few minutes.
Status table and possible errors
While working with Mi Unlock, users may encounter various error codes or statuses, and understanding their meaning helps them quickly diagnose the problem and find a solution without wasting time on unnecessary actions.
| Code/Status | Meaning | Decision |
|---|---|---|
| Current account is different | The account in the program does not match the phone | Log out and log in to the same Mi Account as on your smartphone |
| Wait 168 hours | There has been no waiting time since the tie-up. | Wait until the end of the term without resetting the settings |
| Device not found | Computer doesn't see phone in Fastboot | Replace USB-cable, port or reinstall drivers |
| Server error | The problem is on the side of Xiaomi servers | Try again in a few hours or change the network |
Network errors often occur due to server locks in some regions, and in such cases, using alternative DNS or mobile internet instead of Wi-Fi can help.
What to do if the timer is not going?
Completion of the process and first start
Once the process is successfully completed, Mi Unlock will report this and the phone will automatically restart.The first launch after unlocking will take longer than usual, as the system will reassemble the cache and check the integrity of the partitions. A warning may appear on the screen that the bootloader is unlocked, with a countdown timer of 10 seconds.
This alert will appear every time you turn on your phone, and you can't remove it with regular methods, it's a security measure. Once you boot the system, you'll need to reconfigure your smartphone because all the data has been deleted. SD-map.
⚠️ Warning: Once unlocked, security features such as Find Device and theft protection are enhanced. Remember to keep account passwords in place, otherwise access to the device will be lost.
Now your Redmi 4X is ready to install custom recavators (like TWRP) and firmware. However, remember that from now on, you are solely responsible for the stability of the device. Banking applications may stop working due to a system integrity breach, which will require additional manipulation with Magisk to hide root rights.
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Successful unlocking of the bootloader opens the door to deep customization, but permanently removes the official warranty and reduces the overall level of data security on the device.