What does the Fastboot sign mean on the screen of Xiaomi smartphone and how to deal with it

You turned on your Xiaomi smartphone, and instead of your desktop, you saw a black screen with the Fastboot label, a rabbit logo in a hat and a few lines of code? Don't panic - this is not a breakdown, but a special engineering mode that is used to firmware, restore or diagnose the device. In 90% of cases, the problem is solved in 5-10 minutes without going to the service center.

Fastboot (or Bootloader Mode) is a low-level smartphone state in which the Android operating system does not boot, but critical features are available for working with firmware. It can be activated either at the user's command (for example, when trying to unlock the bootloader), or accidentally due to an update failure, incorrect shutdown or application conflict.

• 🔍 Why Smartphone Is Booting in Fastboot – The Main Causes and Triggers;
• 📱 How to get out of Fastboot mode on Xiaomi Redmi models, POCO mi;
• ⚠️ What to do if standard methods don’t work – advanced solutions;
• 🛠️ How to avoid getting back into Fastboot – prevention of problems.

Importantly, if you're not just displaying a Fastboot on the screen, but a message like This device is locked or Flash is not allowed in Lock State, that's a separate story about locking the bootloader, and we'll touch on that too, but we'll start by looking at the basic cases.

What is Fastboot and why it is needed in Xiaomi smartphones

Fastboot mode is a bootloader-level protocol between a smartphone and a computer that allows you to:

• 🔄 Install custom or official firmware (ROM);
• 🔓 Unlock the bootloader to obtain root rights;
• 🛠️ Restore the device after serious failures;
• 📡 Test hardware (memory, processor, communication modules).

On Xiaomi, this mode is visually different from the same on other brands: instead of the standard text menu, you will see a stylized rabbit in a hat-ushank (the company’s mascot) and an inscription. FASTBOOT Here you can see technical data, for example:

FASTBOOT...


Product: cezanne




Variant: global




Bootloader: Locked

Under normal conditions, a user rarely encounters a Fastboot — it is designed for developers, engineers and enthusiasts involved in firmware modification — but a smartphone can switch to this mode automatically if:

• 🔋 Battery discharged to 0% during the update;
• 📲 There was a failure in the installation OTA-update;
• 🖥️ Communication with PC was interrupted during firmware via Mi Flash Tool;
• 🔄 The device tries to boot from a damaged boot or system partition.

💡

If the Fastboot screen displays the words Device is corrupted, it means that the system files are corrupted, in which case only flashing through the Mi Flash Tool or flashing them will help. EDL-regime.

Previous articleThe reasons for the appearance of Fastboot on the screen Xiaomi: why the phone does not load normally

Xiaomi’s smartphone can get stuck in Fastboot mode for several reasons, which can be divided into software (software related) and hardware (hardware problems).

A critical feature of Xiaomi: if the smartphone was previously unlocked through the official Mi Unlock tool, but then was not properly downloaded, it can automatically return to Fastboot every time you try to download. This is due to the company’s security policy, which blocks the launch of modified firmware on some models (for example, the Redmi Note 10 Pro or the Redmi Note 10 Pro). POCO F3).

Another common reason is that you're not turning off correctly while you're working with system files, for example, if you:

• 🔌 Pulled the cable. USB while running through fastboot;
• 🔋 Power off when updating via Recovery;
• 📵 Interrupted the process of unlocking the loader.

⚠️ Note: If before the appearance of Fastboot you installed custom recovery (TWRP), The problem may be in the incompatibility of the version. TWRP It's your Xiaomi model. TWRP Redmi Note 9 Pro (joyeuse) is not suitable for Redmi Note 9S (curtana, although the devices are identical.

How to exit Fastboot mode on Xiaomi: step-by-step instructions

In most cases, it takes less than a minute to exit Fastboot, and here's an algorithm that sorts from the simplest to the most complex, and start with the first one and move on to the next one only if the previous one didn't work.

Method 1: Forced resetting

The fastest way is a hard reboot, which works if the smartphone hits the Fastboot because of a temporary failure, not because of firmware damage.

Most Xiaomi models, including Redmi Note 11, POCO X3 Pro, Mi 11) that works 70 percent of the time. If the screen goes out, but the Fastboot comes back a few seconds later, go to the next method.

Method 2: Download to Recovery Mode

If a hard reboot doesn't work, try booting into Recovery mode.

1. Turn off your smartphone (press the power button for 10 seconds).
2. Press the Power Button + Volume up and hold for 5-7 seconds.
3. Release the buttons when the Mi Recovery logo appears.

In the Recovery menu, select Reboot. → Reboot to System. If the system boots, the problem is solved. If not, try resetting your settings via Wipe Data (but note that this will delete all data!).

⚠️ Note: On some models (e.g. Xiaomi) 12T or Redmi K50) To log in to Recovery, you first need to unlock the bootloader. If the screen flashes and returns to Fastboot, this is a sign of a locked bootloader.

Method 3: Connect to PC and fastboot commands

If the first two methods fail, you will need a computer with drivers installed. ADB/Fastboot and the fastboot utility from Android SDK. Follow the instructions:

1. Connect your smartphone to your PC through USB-cable (preferably original).
2. Open the command prompt (cmd) in the folder with fastboot.
3. Enter the command: fastboot devices If the device is determined (serial number will appear), execute: fastboot reboot

If the fastboot reboot command doesn’t work, try:

fastboot continue

This command forces the device to continue loading from its current state.

Method 4: Flashing with the Mi Flash Tool

If none of these things work, the last option is to completely reflash through the official Mi Flash Tool, which is a radical method that will bring the smartphone back to factory status, but delete all the data.

• 🖥️ Windows computer;
• 🔌 Original. USB-cable;
• 📁 Firmware for your model (download from the official Xiaomi website);
• 🔓 Unlocked bootloader (unless previously unlocked).

Instructions:

1. Unpack the firmware in a folder without Cyrillic symbols.
2. Install the Mi Flash Tool and connect your phone in Fastboot mode.
3. In the utility, select the folder with firmware and press Refresh. → Flash.
4. Wait until the process is completed (5-10 minutes).

💡

If the Mi Flash Tool gives an error Flash is not allowed in Lock State, then the bootloader is blocked. It must be unlocked through the official Mi Unlock application (requires an association of the Mi Account and a wait of 7-30 days).

What to do if Fastboot appears cyclically (bootloop)

If a Xiaomi smartphone is constantly loaded into Fastboot and then restarted again (called bootloop), this indicates serious problems with the firmware or hardware.

Reason 1: Boot or system partition is damaged

This is done through the Mi Flash Tool or EDL-If you do not have experience with fastboot, it is better to contact the service center - the wrong actions can finally "brick" the device.

Reason 2: Conflict after installing custom software

If you've installed TWRP, Magisk or custom firmware (e.g. LineageOS), the problem may be in:

• 🔄 Incompatibility of the version TWRP with your model;
• 📦 A damaged firmware file;
• 🔓 Unlocked bootloader (on new Xiaomi models this is a prerequisite).

Decision:

1. Download the correct version TWRP for your device (check the model code name in LineageOS database).
2. Check it out. TWRP The command is fastboot flash recovery. twrp.img
3. Then load in. TWRP And install a clean firmware.

Reason 3: Hardware malfunctions

If none of the software methods worked, the problem may be:

• 🔋 Faulty battery (voltage below normal);
• 💾 A damaged memory chip (eMMC or UFS);
• 🔌 Oxidized contacts on the motherboard.

In such cases, a diagnosis is required at the service center, the estimated cost of repair:

⚠️ Note: On Xiaomi models with Qualcomm Snapdragon processor (for example, POCO F4, Redmi K40) there's a hidden regime EDL (Emergency Download Mode, which allows you to flash a device even with a damaged bootloader. EDL You need an authorized Mi Account or a special box (such as a UFi Box) that is only available in service centers.

How to avoid getting into Fastboot in the future: prevention of problems

To minimize the risk of Fastboot reappearing on your Xiaomi, follow these guidelines:

1. Correct system updates

• 🔄 Always update through official channels: Settings → The phone. → Updating the system.
• 🔋 Make sure your battery is at least 50% before upgrading.
• 📶 Use a stable Wi-Fi connection (not mobile internet).

2. Work with firmware and root rights

• 🔓 Before unlocking the bootloader, link the Mi Account to the device.
• 📁 Download firmware only from official sources (Xiaomi Firmware or Xiaomi Firmware) XDA Developers).
• 🛠️ Before you run through fastboot, check the integrity of the files (for example, through the MD5-sum).

3.Safe shutdown and charging

• 🔌 Don't pull the cable. USB during data transmission or firmware.
• 🔋 Avoid battery discharge (especially in the cold).
• 📵 Do not press the power and volume buttons at the same time without the need to.

💡

If you often experiment with firmware, back up the partition. EFS (contain IMEI And the modem data. This can be done through TWRP or the adb backup command.

Frequent mistakes when working with Fastboot and how to avoid them

Many users make the problem with Fastboot worse by making common mistakes, and here are the most common ones and how to prevent them:

Mistake 1: Using incompatible firmware

For example, try to make a global ROM china-device ROM (or vice versa) without first unlocking the bootloader, this leads to a bootloop or a complete locking of the device.

Solution: Always check the firmware matching your model and region. Model code can be found in Settings → The phone. → Model or on a sticker under the battery.

Mistake 2: Interrupting the firmware process

If you disconnect your smartphone from your PC while executing the command fastboot flash, this can damage the critical partitions (boot, system, vendor).

Solution: Use a laptop with a charged battery or UPS to avoid a sudden power outage. USB was undamaged.

Error 3: Ignoring the status of the bootloader

On new Xiaomi models (released after 2021), the bootloader is blocked by default. Trying to flash custom software without unlocking will lead to the error Flash is not allowed in Lock State.

Solution: Unlock the bootloader through the official Mi Unlock Tool app. Note that this can take up to 30 days (linking the account to the device).

Mistake 4: Misuse of the TWRP

Installation of informal TWRP without checking compatibility or skipping the data formatting step (when switching from MIUI on AOSP) Often leads to cyclical loading in Fastboot.

Solution: Always use TWRP, recommended for your model on the official website. After installing custom firmware, run Wipe → Format Data (if required).

FAQ: Answers to Frequent Questions about Fastboot on Xiaomi