The appearance of the inscription This device is locked on the screen of the Redmi 8 smartphone when booting or in the Recovery menu often causes panic among owners. This message indicates that the device bootloader is blocked by the manufacturer, which is a standard security measure for Android system to protect user data. However, for advanced users who want to obtain super-user rights or install custom firmware, this blocker becomes a serious obstacle that requires official unlocking.
Owners of Xiaomi Redmi 8 face this problem most often after trying to flash or reset settings without first preparing an account. It is important to understand that simply erase this inscription with buttons will not work – you need to interact with the company’s servers and perform specific procedures through a computer. Ignoring the unlock rules can lead to a complete locking of the device using Mi Account.
In this guide, we will discuss in detail all legal ways to eliminate this lock, explain the difference between the bootloader status and the account lock, and provide a step-by-step algorithm for actions. It is critical to link the Mi Account to the device in advance and wait for the wait timer to expire, otherwise unlocking is impossible.
Reasons for the notification of blocking
The main reason for this device is locked is Xiaomi’s security policy, which requires user rights checks before making changes to the system partition. Bootloader is a program that runs to the operating system and checks the integrity of its components. If the firmware signature does not match the reference one or if the bootloader is closed, the system warns the user of potential risks.
Often, users are locked because they bought the device from hand or brought it from another region where the previous owner did not untie their account, in which case, when trying to reset or flash it, the system requires authorization in the account that was the last on this device, this is an Anti-Theft security mechanism that makes it difficult to use stolen smartphones.
It can also appear if you have previously tried to unlock the bootloader, but the process has been interrupted or not completed, in which case the phone may cycle to restart or hang on the logo, requiring completion of the procedure. Understanding the reason for blocking is the first step to successfully solving the problem, as the methods of elimination for different scenarios may differ.
- 🔒 Standard factory lock loader for data protection.
- 👤 Having an active Mi Account that wasn’t untied before the reset.
- ⚙️ Attempt to install an informal firmware on a closed loader.
- 🔄 Interrupted process of updating or unlocking in the past.
⚠️ Warning: If you bought a used phone and it requests a password from someone else's Mi Account, it's almost impossible to unlock it software without access to the original account.
Preparation for the procedure of unlocking the loader
Before you start taking active action to remove the inscription This device is locked on Redmi 8, you need to perform a number of preparatory actions. Without these requirements, the unlock software will simply prevent you from starting the process or will give an error at one of the stages.
You will need a Windows computer that is working properly. USB-cable (preferably original or high-quality analogue) and a stable Internet connection. You also need to download the official Mi Unlock Tool utility from the developer's website and install drivers. ADB Make sure your smartphone battery is at least 60% so that the device doesn’t turn off at a critical moment.
The most important step is to link your account, and you have to log into the same Mi Account in the phone's settings menu and in the PC utility, and if you plan to unlock the bootloader, you have to activate the developer status and enable USB debugging, and without these settings, the phone won't go into the right mode to interact with the computer.
☑️ Checklist of preparations for unlocking
- 💻 PC with Windows and Internet access.
- 🔌 Reliable. USB-data-line.
- 📱 Mi Account authorized on the phone for at least 7 days.
- 📂 Backup of all important data as it will be deleted.
⚠️ Warning: The bootloader unlock process automatically performs a full Wipe Data reset. All photos, contacts and applications will be deleted without recovery.
Step-by-step instructions for unlocking through Mi Unlock
The process of unlocking the bootloader on Xiaomi Redmi 8 is official and free, but requires strict adherence to the algorithm. First you need to activate the hidden developer menu. To do this, go to Settings → About phone and quickly click 7 times on the MIUI version. After the message “You became a developer”, return to the main settings menu.
In the "Additional" menu, find the "Developers" option. Here you need to include two options: Debugging by USB and Mi Unlock status. When you press the second item, the system will ask you to insert SIM-I'll have a card and connect to Wi-Fi to check the account, and if that's correct, the phone will tell you that the account is tied.
Now, turn the smartphone off in Fastboot mode. Turn it off completely, then press the Volume Down and Power buttons at the same time. Hold them until you see an image of a hare repairing an android, or the words FASTBOOT. Connect your phone to your computer with a cable. Launch the Mi Unlock Tool on your PC, log in to your account and press the Unlock button. If the timer has expired, the process will go automatically.
What if the timer is more than 168 hours long?
- 🐇 Put your phone in Fastboot mode (Loud Down) + Nutrition).
- 🔗 Connect the device to your PC and start the Mi Unlock Tool.
- 🔓 Press the Unlock button and wait for the process to be completed.
- 📱 The phone will automatically restart and reset data.
Alternative methods and account reset
If your goal is not to unlock the firmware bootloader, but simply to delete the Mi Account password request after reset (FRP Lock situation), the methods will be different. In this case, writing This device is locked may refer to blocking activation. For Redmi 8, there are methods of bypassing through special applications or Recovery mode, but they depend on the Android version and MIUI.
One way is to use the Find Device feature on Mi's official website. If you have access to your account but you have forgotten your screen password, you can remotely erase the data. However, if the phone requires you to enter a password from an account that does not belong to you, there are no legal ways around this. Attempts to use paid unlock services (Bypass) often carry risks and do not guarantee the result on new versions of security.
Some firmware versions work with Recovery resets with internet shut down, but Redmi 8 with Google’s updated security rarely works, leaving only an authorized service center with a check of purchase where employees can unblock after proof of ownership.
- 🌐 Attempt to restore access via i.mi.com.
- 📄 Providing a check to the service center for withdrawal FRP.
- 🚫 Avoiding dubious paid unlock services.
- 🔄 Using Recovery Modes for Reset (not always working).
⚠️ Note: Using third-party software to bypass FRP (Factory Reset Protection can lead to a security breach and instability of the phone.
Table of error codes and their decoding
When unlocking or working with the Xiaomi Redmi 8 bootloader, users often encounter various error codes in the Mi Unlock Tool utility. Understanding their meaning helps to quickly diagnose the problem and avoid unnecessary actions. Below is a table with the most common errors.
| Error code | Description of the problem | Decision |
|---|---|---|
| 10004 | Network or server error | Check the Internet, disable the antivirus, use a proxy |
| 10009 | No device found. | Replace. USB-cable, port or reinstall drivers |
| 10013 | The account has no rights. | The account is not tied to the device or has not passed 7 days |
| 20003 | Wrong password | Enter the correct password from Mi Account in the utility |
| 20028 | Too many attempts. | Wait 24 hours before the next attempt to unlock. |
Errors related to the network (10004) are often solved by a change. DNS-servers on a computer or using a mobile access point instead of home Wi-Fi. Driver errors (10009) require manual driver installation through Windows Device Manager, selecting a device with a yellow exclamation mark.
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If the Mi Unlock Tool gives a communication error, try running the program on behalf of the administrator and temporarily disable the Windows firewall.
Frequent Questions and Possible Problems (FAQ)
Even with a careful reading of the instructions, users may have specific questions about the nuances of the Redmi 8 and Xiaomi servers, and here are the answers to the most popular queries that will help avoid typical errors and understand what to expect in the process.
Can I unlock the bootloader without binding? SIM-map?
Will the warranty be reset after unlocking the bootloader?
What to do if the phone is stuck on the logo after unlocking?
Can the boot loader be blocked again?
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Unlocking the bootloader is an irreversible action for warranty status, but reversible for software. Always weigh the risks before starting the procedure.
Unlocking Xiaomi Redmi 8 and removing the inscription This device is locked is a process that requires patience and care. Compliance with all steps, waiting for a timer and using official software guarantee a successful result without harm to the device. Remember that any manipulation with the bootloader you make at your own risk.