When Xiaomi’s favorite smartphone suddenly stops responding to commands, the screen goes out, or worse, a logo with an Android crossed out appears, it can take anyone by surprise. In enthusiastic circles, this phenomenon has become known as a “brick,” which means that the device’s software is so damaged that it is impossible to load the system normally, and the reasons can be very different from the banal interruption of a firmware update to attempts to obtain a Root-right or install a custom Recovery.
Don't panic at this point, because in most cases, the hardware of your smartphone is completely functional. Your Redmi or Poco has not turned into a useless piece of plastic and metal, but simply requires a specific approach to restore factory condition. The key here is to understand where the failure occurred and choose the right tool for resuscitation, whether it is Fastboot mode or a deeper level of access.
In this article, we will discuss in detail the algorithms of actions for different types of “bricking”, explain the difference between Soft Brick and Hard Brick, and provide step-by-step instructions for using the Mi Flash Tool utility. You will learn how to determine the state of the device by indicating the LED and the reaction to the connection to the computer, which will be the first step on the way to the revival of your gadget.
⚠️ Note: You perform all firmware manipulations at your own risk.The author of the article is not responsible for possible data loss or device failure if the instructions are violated.
Diagnosis: Identify the type of “brick”
Before you start taking action, you need to clearly classify the problem. In the world of Xiaomi, it is customary to divide the faults into two main types: Soft Brick (soft brick) and Hard Brick (hard brick), this classification directly depends on the complexity of recovery and the necessary set of tools.
Soft Brick is the most common and less dangerous situation. A smartphone can hang indefinitely on the Mi logo, constantly restart (bootloop) or go into a black screen, but still respond to a connection to a computer. The device can be defined in Device Manager as Android Bootloader Interface or QUSB_BULK. In this case, the loader is intact and the recovery takes from 5 before 15 minute.
Hard Brick is a more serious scenario where the phone is not showing signs of life: the screen is black, there is no vibration, the LED does not light, and the computer makes a sound of the USB connection, but does not identify the specific device. Often this is accompanied by heating the processor, which requires the phone to switch to EDL (Emergency Download Mode) mode, which sometimes requires disassembling the case.
For accurate diagnosis, connect your phone to your PC and open Device Manager in Windows. If you see Ports (COM and LPT) with a Qualcomm HS-USB QDLoader 9008 device, then the phone is in deep firmware EDL. If Android Bootloader Interface (often with a yellow exclamation mark) is on in the Android Devices section, you are dealing with Fastboot mode, which greatly simplifies the task.
Basic methods of resuscitation without PC
In some cases, especially with Soft Brick, you can do without connecting to your computer and using complex utilities. If your Xiaomi phone is able to log into the Recovery menu, the chances of self-correction are very high. To enter this menu, you usually need to pinch the Volume Up + Power key combination on the device that is off.
Once you're in the Recovery menu (which can be in Chinese or English), first try clearing the cache. Select Wipe Data, then Wipe Cache. This action will delete temporary system files that may have corrupted and caused a cyclical reboot. It's important to understand that this won't delete your personal photos and contacts, unlike a complete reset.
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If the Recovery menu is in Chinese, navigate by icons or use a translator from another device, usually the confirmation button is on the right and the navigation is on the volume buttons.
If cleaning the cache didn't work, you'll have to go to drastic measures -- a full factory reset. From the Wipe Data menu, select Wipe All Data and confirm the action. This operation will completely destroy all user data on the internal drive, returning the phone to the "out of the box" state. After that, select Reboot and wait for the first system boot, which can take up to 10 minutes.
In cases where the phone is responding to buttons but the Recovery menu is not opening, try the battery treatment method. Discharge the device completely until it turns off. Leave it on charging for 2-3 hours, even if there is no charging indication. Then try re-entering Recovery or Fastboot mode. Sometimes, deep discharge and subsequent charging allow you to reset the power controller and start the system.
Recovery through Fastboot mode
Fastboot mode is a low-level protocol built into the Android bootloader that lets you interact with the device’s file system directly from your computer. If your Xiaomi phone enters this mode (the screen usually shows a bunny fixing an android, or the inscription FASTBOOT), you can reflash it using the official Mi Flash Tool utility.
First, you'll need to download the Mi Flash Tool itself and the actual firmware for your model. There are two types of firmware: Recovery (to update via the phone menu) and Fastboot (to recover via PC). We need an archive marked Fastboot, which has the.tgz extension. After downloading, the archive must be unpacked into the root of the C disk so that the path to the folder is short and does not contain Cyrillic, for example: C:\xiaomi\miui_HMNOTE1LTEGlobal.
☑️ Preparation for firmware through Fastboot
Run the Mi Flash Tool on behalf of the administrator. Connect your phone in Fastboot mode to your computer via high-quality USB-Click the Refresh button in the program, the serial number of the device should appear in the list. If the number shows an error or the list is empty, check the drivers in the Device Manager.
At the bottom of the program window, select the firmware method. For full recovery, it is recommended to choose Clean all (full cleaning and firmware) or Clean all and lock (full cleaning and locking of the bootloader). Be careful with the option Save user data - if the system was damaged, trying to save data can lead to a reappearance of the error after the firmware.
| Firmware method | Data retention | Locking the loader | Recommendation |
|---|---|---|---|
| Clean all | No (deletion) | No (unblocked) | For recovery after custom firmware |
| Clean all and lock | No (deletion) | Yes (locked) | To return to a fully stocked state |
| Save user data | Yeah (attempt) | No (unblocked) | Only if you are confident in the integrity of the data partition |
Once you select the method, press Flash. It takes 200 to 600 seconds. At this time, you can absolutely not turn off the cable or interrupt the power. Upon completion, the status will change to success, and the phone will automatically restart. The first boot can be long.
EDL mode: deep recovery
If the phone is not included in the Fastboot, the screen is black, but the computer makes the sound of the connection of the new device, most likely, EDL (Emergency Download Mode) mode is required. In this mode, the phone is defined as Qualcomm HS-USB QDLoader 9008. Firmware through EDL allows you to restore even a severely damaged bootloader.
For the entrance EDL Most modern Xiaomis require disassembly, remove the back cover, turn off the battery, find two contact points on the board, close them with tweezers and, without opening, connect them. USB-When the device appears in the controller, tweezers can be removed. Some older models have a combination of the keys Volume Up. + Loudness Down + Cable connection.
⚠️ Attention: For firmware through EDL New Xiaomi models (after 2018) often require an authorized Mi Account with engineer rights.
Where can I find Test Points?
The firmware process in the Mi Flash Tool is similar to Fastboot mode, but takes longer (up to 1000 seconds). Make sure that the device manager in the COM port properties tab (Port Settings tab) has a speed of 115200, although modern driver versions often adjust this automatically.
If the computer sees the device as an “Unknown Device” with an error code of 43, try another one. USB-port (preferably) USB 2.0), another cable, or install Qualcomm drivers manually. Sometimes installing drivers in Windows 7 compatibility mode helps.
Common mistakes and ways to solve them
In the recovery process, users often encounter errors that put the procedure at risk, and one of the most common is Error: Flash All Except Data Storage or messages about a memory shortage, often solved by cleaning a temporary file folder or changing a temporary file folder. USB-port to motherboard ports (back of system unit), bypassing the front panel or hubs.
Another common problem is that the progress bar is stuck at a certain percentage (e.g., 5% or 98%). If the progress is more than 5-10 minutes, it may be that the firmware file is damaged or does not match the model. Check the checksum of the firmware archive.
- 🚫 Authorization error: You need an account with Mi Account Authorized permissions, so you can search for paid remote firmware services or use Bypass methods if they are relevant to your version of the bootloader.
- 🔌 Connection error: The device is permanently shutting down. Solution: Replace USB-cable to the original or high-quality analogue with thick wires, exclude the use of USB-hub.
- 💾 Memory error: Mi Flash Tool doesn't see the way to firmware. Solution: Move the firmware folder to the root of the C disk, rename it short with the Latin without spaces.
It is worth mentioning the protection of Anti-rollback. Xiaomi has implemented a mechanism that prohibits rollbacks to older versions of software if the new version has an increased security index. Trying to sew old firmware on a device with an updated index can lead to a real Hard Brick, which cannot be fixed software.
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Always check the bootloader version and the Anti-rollback index before firmware.Firmware of the lower index version on a high index device is fatal for some Qualcomm CPU models.
Prevention and important advice
To minimize the risks of turning a smartphone into a brick, you should adhere to a few golden rules when modifying the system. First, always unlock the bootloader in an official way through the Mi Unlock app, waiting for the necessary 7 or 168 hours, which ensures that Xiaomi servers “see” your device and allow manipulation.
Second, before you experiment, make a full backup of your data. Use Mi Cloud, Google Drive, or local storage on your PC. Remember, unlocking the bootloader automatically performs a full Wipe All Data reset for security purposes.
Third, use only original cables and stable power, interrupting the power supply while writing data to memory is one of the main reasons for file system corruption, and do not start the firmware process if the battery is below 60%.