Xiaomi Mi 8 is one of the most popular flagships of the brand, but even it is not immune to a sudden transition to Fastboot mode. This engineering mode can appear after a failed update, resetting settings or accidentally pressing a combination of buttons. If your smartphone is getting stuck on the screen with a hare in a hat-eared and FASTBOOT inscription, do not panic: in 90% of cases, the device can be brought back to life without contacting the service center.
In this article, we will discuss all the current ways to exit from Fastboot to Mi 8, including standard methods (reboot, button combinations) and advanced (working with ADB, flashing through MiFlash). We will focus on the typical user errors that lead to “bricking” of the device, and give a checklist for safe recovery. If you have never encountered the firmware of smartphones, do not worry: we will explain each step in as much detail as possible, with illustrations and video instructions.
What is Fastboot Mode and Why is the Mi 8 Getting It?
Fastboot (or bootloader mode) is a low-level Android device boot mode designed to diagnose, unlock the bootloader and firmware. On the Xiaomi Mi 8 screen, it looks like a black background with the Mi Bunny logo and the FASTBOOT inscription at the bottom, in which the smartphone does not boot the operating system, but remains accessible to commands from the computer.
The main reasons for getting into Fastboot:
- 🔄 Failed software update - interrupted firmware through OTA MiFlash.
- 🔧 Resetting – if the reset is made via Recovery with errors.
- 🔑 Unlocking the bootloader – incorrect completion of the unlock process.
- 🎮 Random button pressing – combination Volume down + Power on-set.
- 💥 Hardware failures – problems with the power button or battery.
It's important to distinguish Fastboot from Recovery Mode. Recovery displays a menu with items in English or Chinese on the screen, and Fastboot only displays a logo and a caption. If your Mi 8 is stuck in Recovery, the instructions in this article won't work, you need other methods.
Method 1: Standard Reboot (the simplest method)
In most cases, leaving Fastboot on the Xiaomi Mi 8 does not require a computer connection.
- Hold the Power button for 10-15 seconds until the screen goes out.
- If the screen is gone, but the smartphone does not turn on – connect it to charging and try again in 5 minutes.
- If the freeze is repeated, try the combination of Loudness up + Power (hold 7-10 seconds).
If the standard reboot doesn't work, don't rush to connect the device to your PC. Try an alternative method:
☑️ Checklist before connecting to a PC
⚠️ Warning: If the Mi 8 gets back into the Fastboot after the reboot, it may indicate damage to the boot partition or system files.
Method 2: Exit via Mi Assistant (Official Xiaomi Software)
If the buttons don’t help, use the Mi Assistant utility (formerly Mi). PC Suite. This method is suitable for users who have previously had debugging enabled. USB (USB Debugging).
Instructions:
- Download and install Mi Assistant from the official website.
- Connect the Mi 8 to your computer via USB-cable (preferably original).
- Run Mi Assistant and wait until the program determines the device in Fastboot mode.
- In the main menu, select Exit from Fastboot (or Reboot to System).
- Confirm the action and wait for the smartphone to restart.
If the Mi Assistant can't see the device:
- 🔌 Check the cable connection to the back USB-port (on the front panel of the PC may not have enough power).
- 🖥️ Install Xiaomi drivers USB Drivers manually (you can download on the official website).
- 🔄 Reset Mi Assistant with Administrator Rights.
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If Mi Assistant doesn’t identify the device, try connecting the smartphone to another device. USB-port or use a cable from another Xiaomi device. Often the problem lies in non-original accessories.
Method 3: ADB and Fastboot commands (for power users)
If previous methods didn’t work, you’ll have to use console commands via ADB and Fastboot, which requires you to install the Android SDK Platform-Tools on your computer.
Step-by-step:
- Download and unpack the platform-tools to the root of the C:\ drive (e.g., C:\platform-tools\).
- Connect the Mi 8 to your PC and open the command line (Win + R → enter cmd).
- Go to the folder with utilities: cd C:\platform-tools\
- Check the connection of the device: fastboot devices If you see a serial number in response, the connection is established.
- Run the reboot command: fastboot reboot
If the fastboot reboot command doesn’t work, try alternatives:
- Reboot in Recovery (from there you can make a reset): fastboot reboot recovery
- Reboot to system with ignoring errors: fastboot continue
⚠️ Note: Fastboot erase or fastboot flash commands can cause data loss or build-up of your device. Do not use them without a clear understanding of the consequences.
What if fastboot devices don’t show the device?
Method 4: Flashing through MiFlash (extreme case)
If the Xiaomi Mi 8 persists in not leaving the Fastboot and standard methods don’t help, the last option is a complete flashing through the MiFlash Tool, which will reset all the data on the device, but return it to working condition.
What you need:
- 🖥️ Computer running Windows (7/10/11).
- 📥 Official firmware for Mi 8 (you can download it on the Xiaomi website).
- 🛠️ MiFlash Tool utility.
- 🔌 Original. USB-cable.
Firmware instructions:
- Download the firmware for your model (Mi 8 is encoded with dipper). Choose the version of Fastboot (file with.tgz extension).
- Unpack the archive in a folder without Cyrillic characters (for example, C:\Mi8_Firmware\).
- Install the MiFlash Tool and run on behalf of the administrator.
- Connect the Mi 8 in Fastboot mode to your PC.
- In MiFlash, click Select and specify the path to the firmware folder.
- Select firmware mode: Clean all - full reset (recommended). Clean all and lock - reset + lock the bootloader (if unlocked).
Flash
| Type of firmware | Data retention | Firmware time | Risks. |
|---|---|---|---|
| Fastboot (official) | ❌ No. | 5-10 minutes | Minimum |
| Recovery (via TWRP) | ⚠️ Partially. | 10-15 minutes | Medium (error risk) |
| Castomic (AOSP, LineageOS) | ❌ No. | 15-20 minutes | High (possible loss of IMEI) |
⚠️ Note: MiFlash firmware will reset all data, including photos, contacts and apps. If Mi 8 has been enabled to sync with Mi Account, some of the data (contacts, notes) can be restored after logging in to your account.
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If the Mi 8 does not turn on or hovers on the Mi logo after the firmware, repeat the process with the option "Clean all and lock". This will eliminate possible errors in unlocking the bootloader.
Method 5: Hardware reset (if the smartphone does not respond)
In rare cases, the Xiaomi Mi 8 can completely “hang” in the Fastboot without reacting to commands from the PC. This happens when hardware failures (for example, damage to flash memory) or incorrect firmware, in which case hardware reset through test points (Test Point).
Warning: This method requires disassembling the device and is only suitable for power users. If you are not sure about your skills, contact the service center.
Instructions:
- Turn off Mi 8 (hold Power + Volume up 20 seconds).
- Remove the back cover (need a mediator or plastic shoulder blade).
- Find Test Point on the motherboard (for the Mi 8, these are two pins next to the battery, labeled TP).
- Close the contacts with tweezers or screwdrivers, simultaneously connecting USB-plug-in.
- Hold the circuit for 5-10 seconds until the computer detects a new device (Qualcomm HS-USB QDLoader 9008).
- Use MiFlash for firmware in EDL (Emergency Firmware) mode.
Critical information: If your Xiaomi Mi 8 has the status of “Account Locked” after leaving Fastboot, the only way to unlock is to enter data from the tied Mi Account.