Xiaomi’s mobile devices, including the popular Redmi 6, are initially shipped with a locked bootloader, a restriction introduced by the manufacturer for security reasons, but it prevents deep customization, installing alternative firmware and gaining enhanced access rights. For enthusiasts and advanced users, removing this lock is the first and mandatory step to full control of the device.
The process of unlocking on Redmi 6 has its own technical features associated with the use of the proprietary utility Mi Unlock Tool and the mandatory binding of the account. It is important to understand that this procedure involves the complete deletion of all user data, so it must be approached by the trained. In this article, we will discuss in detail the algorithm of actions, necessary tools and potential risks that you may face.
It is worth noting that successful unlocking gives you access to installing TWRP Recovery and obtaining root rights, which allows you to remove system debris, change the kernel and even install more recent versions of Android that are not officially available. However, before you start manipulating, make sure that your device is at least 60% charged and the ADB drivers are installed correctly on your computer.
Preparation of the device and account Mi
The first critical step is to link your Mi Account to the status of your device in the MIUI system. Without this procedure, the company’s servers will not issue permission to unlock, and the utility will issue an error.
To activate the hidden menu, go to Settings → About Phone and click seven times in a row on the MIUI Version field. After the notification that you have become a developer, return to the main settings menu, select Additional → For Developers. Here you are interested in Mi Unlock Status.
⚠️ Attention: Linking the account to the device requires mandatory availability SIM-cards with active mobile internet, using only Wi-Fi connection at this stage will lead to an error of binding.
The Mi Unlock status menu requires you to turn on the switch and confirm the action. The system will warn you of the risks, we agree. After that, the phone will be tied to your account. Xiaomi's official policy requires waiting from 168 hours (7 days) after the binding until the moment of successful unlocking. If you try to unlock the device earlier, the server will return the error indicating the remaining time.
Do not forget that the account must be logged in to the unlocker status menu, and not just in the general settings of the phone, although in modern versions. MIUI 9 and 10, which are relevant to Redmi 6, these data are synchronized. Check that the Developer Menu also includes debugging on the Redmi 6. USB.
Required tools and drivers
To perform the procedure, you will need a personal computer or laptop running the Windows operating system. Mobile unlocking applications often work incorrectly or are fraudulent, so using a PC is a must. You will need to download the official Mi Unlock Tool from the developer's website.
In addition to the program itself, it is critical to install the correct drivers. The computer must recognize the phone in several modes: MTP-device ADB-It's an interface, and most importantly, like a Fastboot device, and it's often the absence of Fastboot drivers that causes problems.
- 📱 The official Mi Unlock Tool utility of the latest version.
- 🔌 Original or qualitative USB-data-couple.
- 💻 Installed drivers ADB and Fastboot (can be used through the SDK Platform Tools).
- 🔋 Charged Redmi 6 device (minimum 60% charge).
- 🌐 Stable Internet connection on PC for server verification.
Recommended use USB-port connected directly to the computer motherboard (back of the system unit), avoiding use of USB-This minimizes the risk of loss of connection at the critical moment of transfer of unlock keys.
The algorithm of unlocking the loader
Once the required waiting time has passed (7 days or more), you can proceed to directly unlock, and make sure you remember the password from your Mi Account, as the system will require you to enter it to confirm the identity of the owner.
Turn off the smartphone completely. Then press the Volume Down and Power buttons simultaneously. Hold them until you see an image of a hare repairing an android labeled Fastboot. This is a special boot mode through which you interact with the bootloader.
☑️ Checklist before Mi Unlock launch
Connect your phone to your computer. Run the Mi Unlock Tool and log in to the same account you're attached to on your smartphone. Press Unlock. The program will start checking the status of the device and unlock conditions.
In the process of checking, the utility may issue a warning that all data will be deleted. Confirm the action. If the wait timer has expired, the unlocking process will begin, which will take a few seconds, and when completed, the phone will automatically restart.
Installation of TWRP and obtaining Root rights
An unlocked bootloader is only half the battle, and the main goal is often to install customized Recovery like the TWRP (Team Win Recovery Project), which allows you to make full system backups, install patches, and modify partitions.
Redmi 6 (codename cod) requires you to download a specific version of TWRP adapted to the MediaTek Helio P22 processor. Using recovers from other models can lead to the device "bricking". Once you download the.img image, place it in the folder with the ADB tools.
Put your phone in Fastboot mode and connect to your PC. Open the command line in the ADB folder and type in the command to run the recovery firmware:
fastboot flash recovery twrp-3.x.x-x-cod.imgAfter a successful recording, it is important not to let the phone boot into the regular system right away, as standard Android can overwrite custom Recovery back to stock. To do this, once the process is complete, press the Volume Up and Power buttons before the MI logo appears, then release the power button, continuing to keep the volume up until the TWRP menu opens.
Inside TWRP, you can flash Magisk archives to get root rights, which gives you complete control over the system, allowing you to remove undelete applications and use specialized software.
What happens if the TWRP does not open?
Possible mistakes and ways to solve them
Unlocking isn't always a perfect process, and users often encounter different error codes in Mi Unlock, and understanding their nature helps them quickly find a solution.
One of the most common problems is the "Couldn't verify device" error or account problem, which is often due to the device having two-factor authorization enabled or the password changed, in which case you need to log out of your account in your phone settings, clear the data of Google and Mi services, and log in again.
| Code/Type of error | Cause of occurrence | Method of decision |
|---|---|---|
| Current account is different | There are different accounts on the phone and in the program | Log out and log into the same Mi-account |
| Wait 168 hours | There has been no waiting time since the tie-up. | Wait 7 days without untiing your account |
| Server error / Network error | Problems with the connection or server Xiaomi | Change the network (mob. Internet / other Wi-Fi), try later |
| Device locked by account | The account is not untied before the flashing | Leave the account in the settings before reset |
There are also situations where device drivers are defined as "Unknown", in which case manually installing drivers through Windows Device Manager, with a file selection, will help. android_winusb.inf folder SDK.
Consequences of Unblocking and Guarantees
It is important to realize that unlocking a bootloader on Xiaomi has its consequences, first of all, it is a complete cleanup of the internal drive. All photos, contacts and applications will be deleted without the possibility of recovery, unless a preliminary backup is made.
Second, some security features will stop working, such as banking apps (Google Pay, Mir Pay) and games with rigorous integrity checks may refuse to run on a device with an unlocked bootloader or root rights. Although there are circumvention techniques (Magisk Hide, Zygisk), it is a constant arms race.
⚠️ Warning: Unlocking the bootloader doesn’t officially void the warranty on the device in many regions, but if you damage the software (e.g., locking up the bootloader with someone else’s account), repairs can become paid.
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Make a full backup to an external hard drive or cloud before starting the procedure, and the internal memory will be formatted into the file system, making it extremely difficult to recover the data after that.
In addition, the system will be alerted about unlocked bootloader at each download, it can be removed, but this will require additional manipulation, and Widevine L1 (DRM protection level for streaming video in HD) can be downgraded to L3, which will limit the quality of playback on Netflix and similar services.
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Unlocking the bootloader is an irreversible action in terms of software warranty, which gives freedom of customization, but reduces the overall security of the device.
To sum up, unlocking Redmi 6 is a powerful tool in the hands of a power user that allows you to extend the life of a device by installing light custom firmware. However, for the average user who just needs a working phone for calls and instant messengers, this procedure can bring more hassle than benefit.