Xiaomi phone is stuck on startup the screen Fastboot: 7 working ways to bring the device back to life

You turned on a Xiaomi smartphone, and instead of the usual logo on the screen, the FASTBOOT sign is on the screen and the device does not respond to buttons? This problem is familiar to many owners of the brand's phones - from budget Redmi to flagship Mi or POCO. In 80% of cases, the cause is a firmware failure, a failed update or a conflict with a custom recovery. But the good news is that in 95% of situations, the phone can be brought back to life without visiting a service center.

In this article, you will find step-by-step instructions for all possible scenarios, from a basic forced restart to deep flashing through MiFlash. We will examine why the smartphone is frozen in Fastboot mode, when you can do without losing data, and when you have to reset to factory settings.

Before you start repairing, check if your phone is plugged into charging? Sometimes a dead battery simulates a freeze in a Fastboot. Let the device stand charging for 15 to 20 minutes -- if the charging light doesn't light up, the problem is deeper than it seems.

1.What is Fastboot Mode and Why Xiaomi Phone Hung in It

Fastboot is an engineering protocol for low-level Android firmware access that allows you to interact with the device through your computer even if the operating system is not booting. Normally, you only enter the Fastboot forcefully by holding down the Power + Volume buttons. If the phone boots itself into this mode, you will:

• 🔄 Update failure MIUI — interrupted firmware "over the air" or through Updater.
• 📱 Conflict with the custom recaveri (TWRP) or root rights (Magisk).
• 🔋 Critical battery discharge while working with system files.
• 💻 Failed firmware through MiFlash or ADB.
• 🛠️ Hardware malfunction (damaged charging connector, power controller).

On Xiaomi models with a locked bootloader, Fastboot freezes often after trying to unlock through the Mi Unlock Tool. The fact is that the brand artificially restricts access to the firmware - if the process is interrupted, the system sticks in engineering mode.

⚠️ Note: If you have been installed before the freeze TWRP Or Magisk, don’t try to sew the official one right away. MIUI This can lead to a hard brick, where the phone won't even be detected by the computer.

2.First steps: Forced reboot and battery check

Before you connect your phone to a PC or search for firmware, perform a hardware reset, which works 30-40% of the time and requires no special knowledge.

1. Hold the Power button for 20-30 seconds (even if the screen is unresponsive).
2. If it doesn’t work, press the combination Power + Volume up for 10-15 seconds.
3. For models with a non-removable battery (Redmi Note 10 Pro, POCO X3 Pro), try to connect the charger and repeat step 1.

If the phone is somehow responsive to charging (the indicator lights up, vibrates), the problem is more software, if not, it may be a faulty power controller or USB-C connector. In this case, you can not do without disassembling the device.

Important: On some models (Xiaomi Mi 11, Redmi K40) the button combination for resetting is different. If the standard method did not work, try:

Power + Volume up + Loudness down (hold 10 seconds)

3. How to exit Fastboot via Recovery Mode (without data loss)

If the forced reboot didn’t work, the next step is to try booting into Recovery Mode, which allows you to reset settings, clear the cache, or even install an update from a memory card without connecting to a PC.

Instructions for most Xiaomi models:

1. Turn off the phone (hold power until vibration).
2. Press Power + Volume up until the Mi logo appears.
3. From the Recovery menu, select Wipe & Reset → Wipe Cache (use volume buttons for navigation, Power buttons for confirmation).
4. Restart the device (Reboot) → Reboot to System).

If after cleaning the cache, the phone loads again in Fastboot, try installing the update manually:

1. Download the latest version of MIUI for your model from en.miui.com (select Recovery ROM).
2. Place the.zip file in the root of the memory card (the name should be type) miui_BLOCK_Global_V12.5.1.0.RKFMIXM.zip).
3. In Recovery, select Install update.zip to System.

⚠️ Note: If the error "Can't mount" appears in Recovery /data" or "E:unknown command", which means damage to the data partition, in which case only a complete flashing through MiFlash will help (see section below). 5).

4. PC Connection: Diagnostics and ADB/Fastboot commands

If your phone doesn't respond to buttons or Recovery doesn't have the right options, plug it into your computer.

• 🖥️ Windows PC 7/10/11 (on Mac/Linux There may be problems with drivers).
• 📋 Installed Xiaomi drivers (you can download from the official website).
• 🔌 Cable USB (preferably original, without damage).
• 🛠️ Tools ADB Fastboot (Platform Tools Package from Google).

After connecting the phone, run in the command line (Win + R → cmd):

fastboot devices

If the device is determined (the serial number will appear), enter:

fastboot reboot

If the phone is rebooting normally, the problem is solved. If not, try resetting the cache:

fastboot erase cache


fastboot reboot

For models with unlocked bootloader, you can try reflashing only the boot section:

fastboot flash boot boot.img


fastboot reboot

⚠️ Note: The fastboot erase userdata command will delete all data from your phone! Use it only if you are ready to lose files.

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If the fastboot device command doesn’t show the device, try connecting the phone to another device. USB-port (preferably) USB 2.0 on the back of the PC) or reinstall drivers manually through Device Manager.

5. Complete flashing through MiFlash (for locked bootloader)

If previous methods didn't work, the most radical way is to run the official MIUI firmware through MiFlash, which is suitable for phones with a locked bootloader and is guaranteed to bring the device back to life, but delete all data.

Step-by-step:

1. Download the MiFlash Tool from the official website and install it.
2. Download Fastboot ROM for your model (file with.tgz or.zip extension).
3. Unpack the archive into a folder without Cyrillic characters (e.g., C:\MiFlash\ROM).
4. Launch MiFlash.exe, click Select and specify the path to the firmware folder.
5. Connect your phone in Fastboot mode (it should be defined as COM-port).
6. In MiFlash, select Clean All mode and press Flash.

Important: If MiFlash issues a critical partition flashing is not allowed, your bootloader is locked and an official unlock is required via the Mi Unlock Tool.

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Firmware via MiFlash with Clean All mode deletes all data, including photos, contacts and apps. If your phone had important files, try the methods from sections 3-4 first.

6. Hardware malfunctions: when without repairs can not do

If none of the software methods worked, the problem could be the hardware.

• 🔋 Battery malfunction – bloating, short circuit or deep discharge (below) 3.2V).
• 🔌 Connector damage USB-C — contact oxidation or chain breakage.
• 🛠️ Failure of the power controller (often after falling or getting moisture).
• 💾 Damage to flash memory (for example, after a failed firmware).

How to diagnose a hardware problem:

1. Connect your phone to charging – if the indicator doesn’t burn, there’s a power problem.
2. Try to boot with another battery (if it is removable).
3. Check if the device in Windows Device Manager is defined as Qualcomm HS-USB QDLoader 9008 – this is a sign of “bricking” at the bootloader level.

If the phone does not respond to any manipulations (does not warm, vibrate, not detected by the PC), most likely you will need:

• Replacement of the battery (cost: 1000–3,000) ₽).
• Repair/replacement of the connector USB-C (1 500–4 000 ₽).
• Suppression of the power controller (from 3 000) ₽).
• Replacement of flash memory (5,000–10,000) ₽, model).

⚠️ Note: If the phone is defined as QDLoader 9008, don’t try to flash it through standard methods! EDL Tool) and risk permanently killing the device. Contact the service center with experience with Qualcomm devices.

7.Prevention: How to Avoid Hanging in a Fastboot in the Future

To avoid the problem again, follow these rules:

• 🔄 Update. MIUI Only through the official Updater. Avoid left-handed firmware from forums.
• 🔋 If the battery is under 50%, charge your phone first.
• 🛡️ Don't install custom Recovery (TWRP) Phones with a locked bootloader.
• 🔌 Use high-quality cables and chargers. Cheap accessories can cause power surges.

If you like firmware experiments, unlock the bootloader before installing TWRP or Magisk.

1. Link your Mi Account to your phone in Settings → Xiaomi account.
2. Activate debugging over USB (Settings → About Phone → MIUI version – tap 7 times, then return to Additional → For Developers).
3. Use the Mi Unlock Tool to unlock (requires a wait of 72-168 hours).

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Before any firmware manipulation, check the phone model through the fastboot getvar product command. Installing firmware from another model (for example, Redmi Note 9 Pro instead of Redmi Note 9S) will lead to a hard brick!

FAQ: Frequent questions about Fastboot on Xiaomi