How to open Xiaomi Mi 8: unlock the bootloader, reset the pattern lock and eliminate errors

The Xiaomi Mi 8, released in 2018, is still popular with users thanks to its powerful hardware (Snapdragon 845, 6GB of RAM) and current support for custom firmware. A forgotten pattern lock, a locked bootloader (Mi Unlock Status: Locked) or an error after a failed update.This article is the only complete guide to unlocking the Mi 8 in 2026, taking into account the latest Xiaomi policy changes and circumvention of restrictions MIUI.

We will look at all scenarios: from official unlocking via Mi Unlock Tool to bypassing. FRP-Google Account and password reset without losing data, and we’ll focus on the nuances that are not covered in forums, such as why the Mi 8 might not be detected in Fastboot mode after you’ve firmwareed through the Internet. EDL, how to repair IMEI If you're looking for a way to get your phone back on track, read on.

1.Preparation for Unlocking: What You Need to Know Before Starting

Before you start unlocking, check the current status of the device.

• 🔋 Turn off the phone and press the volume down. + Meals to enter the Fastboot.
• 🖥️ Connect the Mi 8 to your PC and type in the command line: fastboot oem device-info
• 📋 Note the lines Device unlocked: false and Mi Unlock Status: Locked – they will confirm that the bootloader is blocked.

If the phone does not turn on at all (hang on the logo) MI or a red light flashes, the problem may be a damaged firmware, in which case you'll need firmware through the EDL (emergency mode, but you need an authorized Xiaomi account or paid access to the Mi Flash Pro service.

An important point: since 2023, Xiaomi has tightened the rules for unlocking, now you need to use the Mi Unlock Tool:

• 📱 Linking your Mi Account to your phone 72 hours before unlocking (previously 7 days).
• 🌐 Connecting to the Internet via a mobile network (Wi-Fi is not suitable at the binding stage).
• 🔄 Update MIUI Up to the latest stable version (for Mi 8 is relevant) MIUI 14 based on Android 12).

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If the phone has not been linked to the account, try rolling back the firmware to an older version (for example, MIUI 12.5) via Fastboot.Sometimes it resets the waiting timer.

2. Official unlocking of the bootloader via Mi Unlock Tool

This is the only legal way to unlock the bootloader without the risk of “bricking” the phone. SE, Mi 8 Pro).

Step 1: Installation of drivers and preparation of PC

1. Download Mi Unlock Tool (version no lower than 5.5.224.30).
2. Install Qualcomm drivers HS-USB QDLoader 9008 (necessary EDL) Android ADB/Fastboot.
3. Disable driver signatures in Windows (via gpedit.msc) → User configuration → Administrative templates → System system → Installation of the driver).

Step 2: Linking your Mi Account

If the account is not linked:

1. Turn on your phone, connect to the mobile internet (not Wi-Fi!).
2. Go to Settings. → Mi Account → Synchronize and enable all options.
3. B Settings → About the phone tap 7 times on the version MIUI, to activate the Developer Mode.
4. Back to Settings → Additionally. → For developers and include: 🔓 Unlocking OEM (It may not be available on some versions. MIUI). 🔌 Debugging by USB.

Linking your Mi Account to your phone|Install the Mi Unlock Tool|Enable debugging on USB|Update MIUI last-minute|Connect the original USB-cable-->

Step 3 Unlocking through Fastboot

1. Turn off your phone and log in to Fastboot (Loudness Down + Power).
2. Connect to your PC and run the Mi Unlock Tool (on behalf of the administrator).
3. Log in to the same Mi Account as on your phone.
4. Press Unlock and wait until it is completed (usually 10-15 minutes).

Method 1. Delete the key file through ADB

1. Connect your phone to your PC and open the command line in the folder with ADB.
2. Enter the commands alternately: adb shell su rm /data/system/gesture.key rm /data/system/locksettings.db rm /data/system/locksettings.db-wal rm /data/system/locksettings.db-shm reboottings.
3. After resetting, the password will be reset.

Method 2. Use TWRP (if established)

If the Mi 8 is a custom recavérie (TWRP), You can manually delete the lock files:

1. Enter TWRP (Loudness Up + Nutrition).
2. Go to Advanced → File Manager.
3. Delete files: /data/system/gesture.key /data/system/locksettings.db /data/system/locksettings.db-wal /data/system/locksettings.db-shm

Reboot the phone.

⚠️ Note: If after deleting files, the phone is fixated on the logo MI, So the system is damaged, and you'll need to flash it over the Fastboot or EDL.

4. Bypass FRP (Google Account on Xiaomi Mi 8

FRP-Factory Reset Protection works after resetting if you have a Google account on your phone. There are several ways to get around it on the Mi 8, but most methods require an unlocked bootloader.

Method 1. Through Mi Account (if tied)

• 📱 On the lock screen, click Add Account.
• 🔑 Enter your linked Mi Account (not Google!).
• 🔄 After the entrance FRP will be automatically reset.

Method 2. Use TWRP and FRP Bypass Tool

If the loader is unlocked:

1. Install. TWRP for Mi 8 (dipper).
2. Download. FRP Bypass Tool and place it on SD-map.
3. V TWRP Go to Install and select the downloaded ZIP-file.
4. After the firmware reboot - the lock will be removed.

Method 3. EDL (power-user)

If the phone does not turn on or the bootloader is blocked, only the firmware through the EDL circumvented FRP. For that:

• 🖥️ Install Mi Flash Pro and log in to Xiaomi developer account (access required) EDL-server).
• 📂 Download a special firmware with a patch FRP (for example, dipper_global_images_V12.5.1.0.RDAMIXM_20210310.0000.00_10.0_global modified persist.img).
• 🔧 Connect the phone in mode EDL (Hold the volume up + Loudness down + Power on a phone turned off).
• 📥 Check the clean all and lock box (this will remove the slate). FRP, But it'll block the bootloader again!).

⚠️ Attention: Firmware through EDL Without authorization, Xiaomi could lead to a total loss. IMEI If you don't have access to an official developer account, contact the service center.

5. Xiaomi Mi 8 firmware via Fastboot: recovery from crashes

If the phone doesn't turn on, freezes on the logo, or gives an error "The system has been destroyed," Fastboot will help, a method that is also suitable for returning to stock firmware after unsuccessful experiments with customized devices. ROM.

Step 1. Download the firmware

• 🌐 Official firmware for Mi 8 (dipper) can be downloaded on the website Xiaomi Firmware Updater.
• 📁 Select the version: Stable Global: MIUI 14 (last for Mi 8).Developer (China): MIUI 22.1.19 (for experiments). EEA (Europe): V12.5.4.0.RDAMIXM (Google-enabled).
• 📥 Unpack the archive in a folder without spaces (for example, C:\Mi8_Fastboot).

Step 2: Firmware via Mi Flash Tool

1. Install the Mi Flash Tool.
2. Turn off your phone and log in to Fastboot.
3. Connect to the PC and in Mi Flash, click Select, specify the folder with the firmware.
4. Select firmware mode: Clean All – Full reset (recommended for system errors). Clean All and Lock – reset + bootloader lock (if you need to sell your phone) Save User Data - data storage (risky when crashes).

Flash

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If the phone doesn't turn on after the firmware is done (black screen, no image vibration), then the partition persist is damaged. EDL Fully reset (Clean All).

6.Reconstruction IMEI post-unlock

One of the most common problems after manipulating the Mi 8 is loss. IMEI (The phone doesn't catch the network, says "Not registered on the network"). This happens because of damage to the nvram or modem partition when you run the firmware.

How to check for IMEI:

• 📱 Enter the dialer *#06#.
• 🖥️ Or through ADB: adb shell su getprop ro.radio.imei

Method 1: Recovery through Engineer Mode

1. Install the app MTK Engineering Mode (Yes, it works on Snapdragon too).
2. Open it, go to MTK Settings → Connectivity → CDS Information → Radio Information.
3. Choose a Phone. 1 (first SIM-maps and enter: AT +EGMR=1,7,"Yours_IMEI_1" Then for the second SIM: AT +EGMR=1,10,"Yours_IMEI_2"
4. Reboot the phone.

Method 2. Modem firmware via Fastboot

If IMEI missing after firmware, will help restore the modem partition:

1. Download the stock firmware for your model (for example, dipper_global_images_V12.5.1.0.RDAMIXM).
2. Unpack it and find the files: non-hlos.bin (picture-folder). modemst1.modem and modemst2.modem.

Fastboot

fastboot flash modem NON-HLOS.bin


fastboot flash fsg fs_image.tar.gz.md5




fastboot flash fsc fsc_image.tar.gz.md5




fastboot erase modemst1




fastboot erase modemst2

⚠️ Attention: If IMEI It is not repaired, check if the chip is damaged. RF (In this case, only repairs to the service center will help.

7. Alternative Unlocking Methods (for Power Users)

If the official methods don't work, you can try alternative methods, they require technical skills and can lead to loss of warranty or breakage of the device.

Method 1. Unlocking through EDL (Xiaomi without authorization)

This requires an authorized account or paid access to the Mi Flash Pro service. Free rounds (for example, through Firehose) often lead to a blink!

• 🖥️ Install QFil or Mi Flash Pro.
• 📂 Download the firehose and patch0.xml for Mi 8 (dipper).
• 🔧 Connect the phone in mode EDL And run the modified firmware.

Method 2: Use of exploits (e.g., DirtyCOW)

On the old versions. MIUI (before MIUI 12) DirtyCOW exploit was running, allowing you to get root without unlocking the bootloader. It's closed now, but there are alternatives for the Mi 8:

• 🐒 Magisk in RAM — temporary root without changing the system partition.
• 🔓 Xiaomi ADB/Fastboot Tools - script for automatic unlocking (does not work on all versions).

Method 3: Flashing to custom firmware (LineageOS, Pixel Experience)

If you want to get rid of it MIUI Forever, you can install custom firmware:

1. Unlock the loader (required!).
2. Install. TWRP for Mi 8 (version 3.6.2 or later).
3. Download firmware (e.g. Pixel Experience for dipper).
4. Flow through TWRP (Don't forget to make a Wipe. → Format Data).

FAQ: Frequent questions about unlocking Xiaomi Mi 8