Xiaomi Mi5 This Device is Locked: The Complete Unlocking Guide

The appearance of this device is locked on the screen of the Xiaomi Mi5 smartphone is often an unpleasant surprise for owners, especially after resetting settings or trying to flash it. This bootloader lock screen is a standard security measure implemented by Xiaomi to protect user data from unauthorized access and theft of the device. However, for enthusiasts and users who want to gain full control of the gadget, this inscription becomes an obstacle that requires immediate solution.

Ignoring this warning and attempting to reset chaoticly can lead to the phone becoming a brick, completely losing the ability to boot the operating system. Understanding the nature of this lock is the first step to successfully unlocking the Bootloader and restoring the device to health. In most cases, the problem is solved by standard tools of the manufacturer, but requires careful preparation and fulfillment of all conditions.

In this article, we will explain in detail why the lock occurs, how to prepare the Xiaomi Mi5 smartphone for the unlock procedure, and what nuances exist for models released several years ago. You will learn about the differences between the global and Chinese versions of firmware, as well as how to use the Mi Unlock Tool utility correctly without the risk of data loss or violation of warranty obligations (if they are still relevant).

Reasons for the notification of blocking

The main reason for this device is locked is a closed bootloader that checks the digital signature of the software being run. If the signature does not match the reference one, or if a user tries to download customized receptacles (such as TWRP), the system stops the startup process, which is a fundamental mechanism for protecting Android devices that prevents the modified code from running.

Often users experience this problem after buying a device from hand or bringing it from China, where the default lock is installed, and a message may appear after a failed system update or root access attempt, when the integrity of system partitions was violated, in which case the phone goes into Fastboot mode and waits for commands from an authorized computer.

⚠️ Warning: Attempts to unlock a bootloader without first linking a Mi Account can result in a device being completely locked for 7, 15 or even 30 days, depending on the region’s security policy and version. MIUI.

It is important to distinguish between locking the bootloader and blocking the account Mi Cloud (FRP If the phone requires a password from a Mi Account that you don’t remember when you turn on, then standard unlocking Bootloader via Fastboot won’t help – you will need proof of ownership of the device through support or checks. However, if the screen just reports locked status and offers to unlock, then the path through the official tools is open.

Preparation for unlocking the loader

Before you start the action, you need to perform a number of preparatory operations. Without these conditions, the unlock utility simply will not see the device or will give an error. First of all, make sure that the Xiaomi Mi5 smartphone has USB debugging enabled and the developer status activated. To do this, go to Settings → About Phone and seven times click on the MIUI build number.

Once you activate the developer menu, find the Developers option in the advanced settings, and enable OEM Unlocking and USB Debugging. It is also critical to link your current Mi Account to your device. In the same developer menu, click Mi Unlock Status and follow the instructions to link your account to that particular device.

Remember to make a full backup of the data, as the process of unlocking the bootloader will inevitably lead to the complete removal of all information from the internal drive.Use cloud services Mi Cloud or local saving to the computer via Mi PC Suite.Also make sure that the computer has the current ADB and Fastboot drivers, and the USB cable is original or quality, able to transfer data, not only charge.

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Use it. USB-port 2.0 on the back of the computer to connect the smartphone – ports USB 3.0 sometimes causes problems with device recognition in Fastboot mode on older drivers.

Unlocking procedure with Mi Unlock Tool

The official tool to remove the lock is the Mi Unlock Tool, which you need to download from the official website miui.com/unlock. Once installed, launch the utility on behalf of the administrator and log in to the same Mi Account that was associated with the phone earlier. Any mismatch of accounts will lead to an authorization error.

Put Xiaomi Mi5 smartphone in Fastboot mode. To do this, turn off the device completely, and then press the Volume Down and Power buttons simultaneously until the image with the hare repairing the android appears. Connect the phone to the computer with a cable and press the Refresh button in the utility. If the drivers are installed correctly, the program will determine the device.

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Press Unlock in the program interface. The system will issue a warning that all data will be deleted. Confirm the action. The process can take from a few minutes to several days if the account has been tied for a short time. If successful, the status will change to Unlocked successfully, and the phone will automatically reboot, starting the data cleanup.

The problem of linking the account and timeouts

One of the most common problems is the requirement to wait a certain time (usually 168 hours or 7 days) after an account is linked, a security measure introduced by Xiaomi to prevent device theft. If you just linked an account to the Mi Unlock status menu, the program will issue an error indicating the remaining waiting time.

It is important to understand that bypassing this timer is not possible, and trying to change the system time on your phone or computer will not help, since the verification is on the server side of Xiaomi, the only solution is to wait until the specified period expires without untiing the account and resetting the phone during this period.

⚠️ Warning: If you reset your phone settings or unplug your Mi Account during the waiting period, the timer will reset and the countdown will start again.

There is also the concept of “regional binding”: accounts registered in China may have different unlock rules compared to global accounts.If you use the Chinese version of MIUI, make sure your account has a sufficient rating or age, as new accounts in China may have increased waiting times or limits on the number of unblocks per year.

Unlocking without a computer and alternative methods

Many users are looking for a way to unlock the Xiaomi Mi5 without using a PC, relying on third-party apps from the Play Market.It should be noted immediately: there is no legal way to unlock the bootloader solely by the smartphone itself without interacting with Xiaomi authorization servers. Apps promising this are often fraudulent or require an already unlocked bootloader to work.

There are paid services that offer remote unlocking through server-side methods (Remote Unlock), which exploit vulnerabilities in authorization protocols or access to closed dealer servers, and use such services carries risks: you transfer access to your device to third parties, which may compromise personal data, and such methods may cease to work after updating the server part of Xiaomi.

Older devices like the Xiaomi Mi5 sometimes have exploits associated with specific versions of the Snapdragon processor, but they are extremely rare and require deep technical knowledge. Most of the "miracle ways" described on the forums are either long-since closed by security patches or lead to damage to persist or modem partitions, which entails loss of cellular signal and inoperability of the fingerprint sensor.

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The only safe and guaranteed method of unlocking is the official Mi Unlock Tool with the observance of the account binding timeout.

Possible errors and ways to eliminate them

During the unlock process, users often encounter error codes, such as error 10009 or 10006 usually indicates a network connection or server problem.