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Fastboot in Mi: Guide to Unlock, Flash, and Troubleshoot

2024-08-24 08:13:09

Fastboot mode is an essential tool for Xiaomi (Mi) devices, enabling users to perform a 

range of advanced tasks such as unlocking the bootloader, flashing firmware, and 

troubleshooting software issues. Understanding how to utilize Fastboot can empower you 

to take full control of your Mi device, ensuring that you can recover from any issues and 

customize your experience to suit your needs.

 

What is Fastboot Mode?

Fastboot mode is a special diagnostic and engineering mode on Android devices, 

including Xiaomi smartphones. This mode allows users to interact with their device's 

software at a deeper level, bypassing the usual Android operating system. When your Mi 

device is in Fastboot mode, you can issue commands from your computer via the Fastboot 

tool, part of the Android SDK (Software Development Kit).

 

Why is Fastboot Mode Important?

Fastboot mode is crucial for tasks that require low-level access to your device, such as:

• Unlocking the bootloader: Gaining the ability to install custom ROMs, kernels, and 

recovery images.

• Flashing firmware: Installing official or custom firmware updates directly to your 

device.

• Recovering a bricked device: Fixing a phone that won’t boot into the Android 

operating system.

• Performing system maintenance: Clearing cache partitions, fixing corrupted files, 

and more.

 

How to Enter Fastboot in mi Devices

Step-by-Step Guide

1. Power Off Your Device: Begin by turning off your Xiaomi device completely. Ensure 

that it is not connected to any power source or your computer.

2. Press and Hold Key Combination: Simultaneously press and hold the Volume 

Down button and the Power button. Keep holding until the Fastboot logo appears 

on your screen.

3. Connect to Your Computer: Once in Fastboot mode, connect your device to your 

computer using a USB cable.

4. Verify Fastboot Connection: On your computer, open a command prompt or 

terminal window and type the command fastboot devices. If your device is 

connected properly, its serial number will appear in the terminal.

Exiting Fastboot Mode

If you want to exit Fastboot mode without executing any commands, simply press and hold 

the Power button until your device reboots. Alternatively, you can issue the command 

fastboot reboot from your computer.

 

Common Uses of Fastboot in mi Devices

Unlocking the Bootloader

Unlocking the bootloader on a Xiaomi device via Fastboot is often the first step towards 

customizing your device. An unlocked bootloader allows you to:

• Install custom ROMs: Replace the stock MIUI ROM with a custom one that offers 

different features and user experiences.

• Install custom recovery: Replace the stock recovery environment with a custom 

one like TWRP, enabling you to make full backups, flash ZIP files, and more.

How to Unlock the Bootloader

5. Request Bootloader Unlock: Visit the Xiaomi unlock request page and log in with 

your Mi account. Follow the prompts to request an unlock. This process may take a 

few days for approval.

6. Enable Developer Options: On your device, go to Settings > About phone and tap 

on MIUI version seven times to enable Developer Options.

7. Enable OEM Unlocking: Navigate to Settings > Additional settings > Developer 

options, and enable OEM unlocking.

8. Enter Fastboot Mode: Follow the steps outlined earlier to enter Fastboot mode.

9. Unlock the Bootloader: Connect your device to the computer, open the Mi Unlock 

tool, and follow the on-screen instructions to unlock the bootloader.

 

Flashing Firmware

Flashing firmware via Fastboot is a powerful way to update your device or revert to a 

previous version of MIUI. This can be particularly useful if you are experiencing software 

issues or want to try a beta version of MIUI.

 

Steps to Flash Firmware

 

10.Download the Correct Firmware: Ensure you download the correct Fastboot ROM 

for your specific device model.

11.Boot into Fastboot Mode: Enter Fastboot mode as described earlier.

12.Use Mi Flash Tool: Open the Mi Flash tool on your computer, select the firmware 

package, and click "Flash". Wait for the process to complete.

 

Recovering a Bricked Device

 

A device is considered "bricked" when it can no longer boot into the Android OS. Fastboot 

mode is often the last resort to recover a bricked Xiaomi device.

Recovery Process

13.Download Stock Firmware: Obtain the official stock firmware from Xiaomi's 

official website.

14.Enter Fastboot Mode: Follow the usual process to boot your device into Fastboot 

mode.

15.Flash the Stock Firmware: Use the Mi Flash tool to flash the stock firmware. This 

should restore your device to its factory state.

 

Troubleshooting Common Fastboot Issues

 

Device Not Recognized by Fastboot

 

If your computer does not recognize your Mi device in Fastboot mode, try the following:

• Check USB Drivers: Ensure that the latest Xiaomi USB drivers are installed on your 

computer.

• Use a Different USB Cable or Port: Sometimes, the issue can be as simple as a 

faulty USB cable or port.

• Reboot Both Devices: Restart your computer and phone, then try connecting 

again.

Fastboot Commands Not Working

If Fastboot commands are not being recognized, ensure that:

• ADB and Fastboot Tools are Installed: Confirm that the Android SDK is correctly 

installed on your computer.

• Correct Command Syntax: Double-check the syntax of the commands you are 

using.

Stuck in Fastboot Mode

If your device is stuck in Fastboot mode and won’t exit, try the following solutions:

• Force Reboot: Press and hold the Power button for about 10 seconds to force a 

reboot.

• Use Mi Flash Tool: If the device is unresponsive, use the Mi Flash tool to flash the 

stock firmware.

 

Conclusion

Understanding and mastering Fastboot mode on your Xiaomi device opens up a world of 

possibilities, from unlocking the bootloader to recovering a bricked phone. This guide has 

covered the essential aspects of Fastboot mode, including how to enter and exit the mode, 

common uses, and troubleshooting tips. By following these steps, you can ensure that 

your Mi device remains in optimal condition, ready to handle any advanced tasks you 

throw its way