Message 'Bak is ready' on Xiaomi: step-by-step action plan

A notification or message β€œbuck is ready” (or β€œflash ready”, β€œbaked ready” depending on the translator and the version of the software) on your Xiaomi device often confuses the user. This is a system signal that the preparatory stage is completed and the device is in the waiting mode for further commands from the bootloader or computer. 90% of the time this is the procedure for flashing through the Mi Flash Tool or working with Fastboot.

This stage cannot be ignored, as the phone is in critical condition and cannot boot a normal operating system without external actions, and you need to clearly understand what manipulations preceded this message in order to choose the right algorithm. Below we will discuss detailed scenarios for various situations.

The situation can be either regular (planned flashing) or emergency (device "burst" after a failed update). In both cases, your actions must be consistent and accurate. Data loss in such cases is a frequent occurrence, so you need to approach the process consciously.

Identification of the current state of the device

Before you press any buttons, you need to determine exactly what mode your Xiaomi smartphone is in. The message about the readiness of the β€œtank” (flash memory) usually appears in two main scenarios: when you connect to the PC in Fastboot mode or in EDL (Emergency Download Mode).

Visually, these modes are different. Fastboot mode typically displays the Mi Bunny logo on a black background. If the screen is black, Windows Device Manager sees a new one. USB-DAVIS (often as a device) QUSB_BULK Or Qualcomm, you're in deep boot mode. It's a fundamental shift in tactics.

It's also important to check how the device is defined in the system. Open Device Manager on your computer and look at Ports (COM and LPT) or USB Controllers. If it's a device with an exclamation mark or a Qualcomm HS-USB QDLoader 9008, it's ready for forced firmware. In normal Fastboot mode, the device manager in Android Devices or Xiaomi will display Android Bootloader Interface.

πŸ“Š What mode is your device in?
Fastboot (Hare)
EDL (Black Screen, PC Sees as Qualcomm)
Recovery (Menu with buttons)
Normal download (Hangs on the logo)

Tools and drivers preparation

To successfully complete the process, when the tank is ready, you will need specialized software. Standard Windows or macOS tools are not enough here. You will need the official Mi Flash Tool utility, which should be downloaded only from proven resources, for example, from the 4PDA forum or the official Xiaomi website.

The critical thing is to install the right drivers, and without them, the computer won't see the phone in the right mode, even if the alert is already displayed, and users often forget that Fastboot and EDL require different drivers.

  • πŸ”Œ USB-cable: Use only original or quality cable with data support, not just charging.
  • πŸ’» Connection port: Connect the device directly to the PC motherboard (back of the system unit), avoiding USB-hubs and front panels.
  • πŸ“‚ File path: The firmware folder should not contain Cyrillic characters or spaces (e.g, C:\Xiaomi\ROM\).

β˜‘οΈ Firmware readiness

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Actions in Fastboot mode

If your Xiaomi is in Fastboot mode and the program says it's ready, then the connection is established. Now you need to download the firmware itself. It's important to understand the difference between the types of firmware: Recovery (restored update) and Fastboot (complete cleaning and reinstallation).

The message that the "tank is ready" often means that the data buffer has been formed, but the writing process itself has not yet been initiated. In the Mi Flash Tool window, you need to press the "refresh" button to make the device appear in the list. If it appears, select the desired firmware method at the bottom of the window.

There are three main firmware methods, each with its own implications for user data: Choosing the wrong method can result in the loss of important information or, in rare cases, the inability to download.

Firmware methodDescriptionImpact on data
clean allComplete cleaning and installation of the new systemAll data is deleted
save user dataUpdating the system with saving filesData is retained
clean all and lockFull reset and lock of loaderAll data is deleted, BL is blocked.
What is a bootloader lock?
Lock BL returns the phone to its original state, like in a store, after which you will not be able to install custom recavators or obtain root rights without re-unlocking, which again requires a wait of 168 hours (7 days).

Working with EDL mode (9008)

If the tank is ready in the context of EDL, the situation is more complicated. This mode is designed to disaster recovery of Xiaomi smartphones when other methods do not work. Entering this mode often requires disassembling the device and closing test points, or using special ADB commands if the bootloader is still partially functional.

In this mode, the standard firmware procedure through Mi Flash can be blocked by the manufacturer. Modern models require an authorized Xiaomi account with the rights of an engineer to run through EDL. If you do not have such an account, the program will give an authorization error, even if the "tank" is technically ready to record.

⚠️ Attention: Attempting to install the firmware in mode EDL without the appropriate access rights may result in the device being permanently locked, make sure your model supports open firmware through the 9008 port, or use an authorized service.

The recording process takes longer, the progress indicator can freeze at a certain percentage for a long time. This is normal for the Qualcomm protocol. Interrupting the process at this stage is guaranteed to turn the device into a brick, which can only be restored in a service center with a programmer.

πŸ’‘

If the progress bar in Mi Flash is stuck, but the timer keeps going, don't panic. Let the process go to 100 percent, even if it takes 10-15 minutes.

Solving typical mistakes

Even with the right actions, there can be failures. One of the most common errors is Flash Error or Programming, often due to driver conflict or lack of access rights in the Windows operating system.

There's also a common bug that's associated with the path to the firmware files, and the Mi Flash Tool is extremely sensitive to the path length, and if the firmware folder is deep in the directory structure, or the folder name is too long, the process won't start, despite the device's availability.

  • ❌ Missmatching image and device error: You are trying to flash firmware from another model. Check the code name of the device (e.g. cepheus, ursa).
  • ❌ Can not flash flash image error: A cable or a flash image USB-Try another port or computer.
  • ❌ Authorization error: Mi Account Auth account is required, and can only be resolved through a service center.

To fix driver problems, it is recommended to use the DriverAssitant utility or manually remove the device from the Device Manager and update the hardware configuration. Sometimes switching the USB protocol in the computer BIOS settings helps.

Completion of the process and first start

When the progress bar in the Mi Flash Tool goes green and the message "success" appears, the process can be considered complete. The device either automatically restarts or remains on the black screen. 10-15 second-on-seconds.

The first run after the firmware (the tank was successfully stitched) can last up to 10 minutes. The system performs application optimization and partition configuration. Don't try to interrupt this process, even if the phone seems to be hanging. The boot indicator may not show up for the first few minutes.

⚠️ Note: If your phone is bootlooped after you have firmware, you may have flashed firmware from another region or Android version.

πŸ’‘

Successful firmware is only half the battle, and be sure to wait until the system is fully loaded and set up before you connect accounts and recover data.

Preventing problems during updating

To avoid the situation when the tank is ready and you do not know what to do, you should adhere to the rules of safe updating. Regularly back up important data to the Xiaomi Cloud or your computer.

Use only official update channels via Settings β†’ About Phone β†’ System Update. Manual flashing is only required in exceptional cases when a full-time update is not possible or you need to roll back to an earlier version of Android.

Keep an eye on battery status. Low battery power during firmware is one of the main causes of hardware failures. If the battery is worn out, connect the phone to a power source, even if it is 100% charged, to compensate for the power surges.

Can I interrupt the firmware if it is frozen?
It is strongly advised not to interrupt the firmware unless the process is in one place for more than 30-40 minutes, in which case there is a risk of a broken bootloader. If interruption is necessary, turn off the cable and press the power button.
Will the warranty fly off after the flashing?
The official flashing on the global version via the Mi Flash Tool does not usually affect the warranty unless the Unlock BL has been released. Unlocking the bootloader will officially void warranty obligations in a number of regions.
Where can I get the original firmware?
Official firmware is available on miui.com or through the Mi bootloader app, and current versions can be found on the 4PDA forum in the respective model branches.