Unlocking the bootloader on Xiaomi Mi 8: a complete guide with current methods

The Xiaomi Mi 8 remains a popular smartphone among customization enthusiasts, but its potential is only revealed after unlocking the bootloader. Without it, you can not install custom software, get root rights or flash alternative firmware. However, the process of unlocking on the Mi 8 has nuances: Xiaomi has tightened the rules, and old instructions often lead to errors or a “brick”.

In this article, we will discuss the current 2026 methods of unlocking the bootloader for Xiaomi Mi 8 (codename dipper), including the official method through the Mi Unlock Tool, circumventing restrictions and solving typical problems. We will also analyze the risks of informal methods and how to minimize the chance of locking the device permanently.

Why Xiaomi is blocking the bootloader and what it gives the user

Factory bootloader locking is standard Xiaomi practice for all devices, including the Mi 8.

🔒 Security: Protection against malware installation via recovery or fastboot.
📦 Firmware Control: Forced Update Only Through Official Channels MIUI.
🛡️ Warranty obligations: Unblocking voids the warranty (officially).

For a normal user, a blocked bootloader means:

✅ Inability to accidentally “break” the system (for example, by incorrect firmware).
❌ Restrictions on the installation of Google Camera, Magisk or custom cores.
⚠️ Risk of staying with a brick if you fail to unlock (especially on older versions) MIUI).

After unlocking, you will be able to:

🔄 Install TWRP, OrangeFox or other custom recovery.
📱 Switch LineageOS, Pixel Experience or other AOSP firmware.
🔓 Get root rights through Magisk without the risk of blocking.
🔧 Modify system files (e.g. to improve camera or sound).

⚠️ Attention: On Mi 8s MIUI 14+ The official Mi Unlock Tool may require you to link your account to your device for 7 to 30 days. If you bought your hands-on phone, the previous owner must remove the link via Settings. → Xiaomi account → Devices.

📊 You have already tried to unlock the bootloader on Xiaomi?

Yes, in an official way.

Yes, by the informal method.

No, just reading the instructions.

No, I'm afraid of the risks.

Preparing for Unlocking: What to Do Before Starting

Incorrect preparation is the main cause of errors when unlocking.

Check the model and version MIUI: On the Mi 8, unlocking only works on global (Global) and Chinese (China) versions. MIUI. Firmware for EEA (Europe) or India may require additional action. → The phone. → Version. MIUI.
Create a backup: Unlocking will reset the phone to factory settings. Use Settings → Additionally. → Backup and reset or Mi Cloud (if an account is linked).
Charge the battery: The charge level should be at least 60%, and when discharged during the process, the device can turn into a "brick".
Prepare your PC: Install Mi Unlock Tool (up-to-date version – official website), drivers ADB/Fastboot Disable the antivirus (it can block the tools).

Also check if the phone is linked to the previous owner's Mi Account, and if so, ask them to remove the device from the Settings list. → Xiaomi account → Without it, the Mi Unlock Tool won't allow unlocking.

Unlocking with Mi Unlock Tool

This is the safest way, but since 2023 Xiaomi has tightened the requirements. MIUI 12–14:

Link Xiaomi account to device: Go to Settings → Xiaomi account, log in to your account and wait for sync. MIUI You need to wait 7 days after binding (notification will appear in Settings) → Additionally. → For developers → Mi Unlock status).
Activate Developer Mode: Go to Settings → About the phone and 7 times click on the version MIUI. Then in Settings → Additionally. → For developers, enable OEM unlocking and debugging USB.
Connect your phone to your PC: Use the original cable USB. Enable File Transfer (MTP) Launch the Mi Unlock Tool on behalf of the administrator.
Follow the instructions: Log in to the same Mi Account as your phone. Press Unlock and wait until it is completed (usually 10-15 minutes).

If the Mi Unlock Tool is a Cann't unlock error or Current account is different from the account info on the device, then:

🔹 Account is not tied to the device (you need to wait 7-30 days).
🔹 The phone was dropped after tethering (start the process again).
🔹 Unofficial firmware is used (you need to flash Fastboot) ROM via Mi Flash Tool).

⚠️ Attention: On Mi 8s MIUI 14+ Mi Unlock Tool may require confirmation via SMS If the code does not arrive, check if the account is blocked for suspicious activity (for example, frequent attempts to unlock).

What if the Mi Unlock Tool is 99% locked?

The “hang” error is 99% typical of the MIUI 13-14 Solutions: 1. Reconnect the phone to another USB-port (preferably) USB 2.0). 2. Turn off the Internet on your PC while unlocking (sometimes helps). 3. Try another version of the Mi Unlock Tool (e.g. 5.5.224.30 instead of the last one). 4. If nothing helps, use the informal method (see next section).

Informal Unlocking Methods: Risks and Instructions

If the official method does not work (for example, due to waiting 30 days or Mi Unlock Tool errors), alternative methods can be used.

Method 1: Unlocking with EDL (Emergency Download Mode)

It requires a special cable or test point on the board, suitable for bricks or devices with a damaged bootloader.

Download Mi Flash Tool and Fastboot ROM Mi 8 (the version must be the same as the current version) MIUI).
Put the phone in mode. EDL: 🔌 For the working device: use the command adb reboot edl 🛠️ For "brick": short the test point on the motherboard (requires disassembly).

Mi Flash Tool

COM

Device Manager

Flash

After the firmware, repeat the official unlock method.

Method 2: Bypassing Waiting Through Downgrade MIUI

On some versions MIUI (So, for example, 12.5), the wait for unlocking is only 72 hours:

Download Fastboot ROM version MIUI 12.5 for Mi 8 (e.g., for example, V12.5.1.0.RDACNXM).
Sweat it through the Mi Flash Tool with the clean all option.
After downloading, link your account and wait for notifications about the possibility of unlocking (usually 3 days).
Use the Mi Unlock Tool as the official method.

Method	Tools required	Risks.	Implementation time
Official (Mi Unlock Tool)	Mi Unlock, Xiaomi account	Minimum (data reset)	7-30 days of waiting + 15 minutes
EDL-firmware	Mi Flash Tool, Testpoint/Cable	High (brick risk)	1-2 hours
Downgrade MIUI	Fastboot ROM, Mi Flash Tool	Average (data loss)	3 days waiting + 30 minutes
Paid services	Remote access to PC	Financial (fraud)	1-3 days

⚠️ Attention: Unofficial methods can lead to hard-brick (irreparable damage) if you use incorrect firmware or interrupt the process. ROM for Mi 8 SE Mi 8 is guaranteed to kill the device.

💡

If you buy the Mi 8 hand-held to unlock, ask the seller to provide a screenshot from Settings → Additionally. → For developers → Mi Unlock status. If it says "Device unlocked," you save time. If "Tieted to an account," make sure the seller removes the link after the sale.

Typical errors and their solutions

Even when following the instructions, users encounter errors.

"Couldn't unlock. The device is locked."

Causes and solutions:

🔹 Account not tied: check in Settings → Xiaomi account → If the device is not on the list, re-attach and wait 7 to 30 days.
🔹 Wrong version. MIUI: Update or roll back the firmware to supported (for example, MIUI 12.5).
🔹 Lock-in IMEI: If the phone is listed as stolen, unlocking is not possible.

Mistake: "Mi Unlock Tool can't see the device"

Connection problems are solved as follows:

🔌 Check the cable (use the original from Xiaomi).
🖥️ Install the drivers. ADB/Fastboot Manually via Device Manager (select Android Bootloader Interface).
🔄 Reboot your phone in fastboot manually: Turn off the device, then press Volume down + Nutrition.

Error: "This device is not supported by mi unlock"

This error is typical for the Mi 8 with firmware EEA Or India. Solution: flash the global or Chinese version. MIUI fastboot.

Download Fastboot ROM for dipper_global or dipper (China) from xiaomifirmwareupdater.com, then:

Unpack the file with the firmware.
Start the Mi Flash Tool, select the folder with the firmware.
Connect your phone in fastboot mode (clip Volume down) + Nutrition).
Press Refresh, then Flash (select clean all).

💡

If the Mi Unlock Tool gives an error about the mismatch of accounts, even if you are logged in to the correct one, try changing the region of your Xiaomi account to “China” in the profile settings.

What to do after successful unblocking

Once the bootloader is unlocked, your Xiaomi Mi 8 is ready for further modifications.

Install custom recovery: Popular options for Mi 8: 🔧 TWRP (version 3.7.0+ Android 12/13). 🦊 OrangeFox (Best Support) A/B-Installation with fastboot: fastboot flash recovery twrp.img fastboot boot twrp.img
Make a full backup: In TWRP Select Backup and save the Boot, System, Data, Vendor partitions!
Select custom software (optional): Mi 8 available: 🤖 LineageOS 20 (Android 13). 📱 Pixel Experience (Pure Android with Pixel chips). 🔄 MIUI EU (MIUI bloatless).

Get root rights.

Install Magisk via TWRP:

1 Download the latest Magisk.apk (rename it.zip).


2. In TWRP, select Install → magisk.zip.




3.Reboot.

After custom software installation:

🔄 Update the firmware through OTA (if maintained).
🔒 Install SafetyNet Fix (for banking applications).
📡 Check the module's operation NFC Wi-Fi (some custom firmware requires additional patches).

⚠️ Note: Mi 8 with unlocked bootloader does not work official updates MIUI through OTA. Installation will result in the bootloader being blocked again!

Risks and how to minimize them

Unlocking the bootloader is not a safe procedure, the main risks and ways to avoid them:

Risk	Effects of consequences	How to avoid
Hard-brick (indefinable brick)	The phone is not turned on, not determined by the PC	Use only firmware for dipper, do not interrupt the process.
Loss of IMEI	Cellular communication is not working, Wi-Fi	Save the backup section. modemst1/modemst2 into TWRP
Blocking of Xiaomi account	Unable to unlock on other devices	Don’t use one account to unlock multiple phones in a short period of time.
SafetyNet problems	Banking apps, Google Pay, are not working	Install Magisk + Universal SafetyNet Fix module

To reduce the risks:

📌 Always check. MD5-hash of downloaded firmware (for example, through 7-Zip).
🔋 Use a laptop with a charged battery or UPS – a power outage during firmware kills the phone.
📡 Before firmware custom software check reviews on forums (XDA, 4PDA) Stability of a particular assembly.

If something went wrong:

🔄 Soft-brick (the phone is loaded into the phone) fastboot/recovery): scoop up the Fastboot ROM via Mi Flash Tool.
🚨 Hard-brick (no response to buttons): requires firmware through EDL (You need an authorized Xiaomi account or paid service).
📵 Loss of loss IMEI: Restore the backup modemst or use the tool QCN Rebuilder (requires skills).

FAQ: Frequent questions about unlocking Xiaomi Mi 8

Can I unlock the Mi 8 without waiting 7-30 days?

Yes, but only by informal means: EDL (You need a testpoint or an authorized cable. MIUI 12.5 (waiting 72 hours) Using paid services (risk of fraud) officially bypass the wait is impossible - Xiaomi checks the time of account binding on its servers.

Will Google Pay work after you unlock and get root?

Not if you don't configure Magisk correctly. To work with Google Pay and banking apps: Install Magisk (not SuperSU!). Activate Universal SafetyNet Fix and MagiskHide Props Config. In Magisk settings, enable MagiskHide and add Google Pay to the hidden app list. Check SafetyNet status through the app YASNAC. On some custom firmware (e.g. Pixel Experience), Google Pay works out of the box".

Can I return the official bootloader lock after unlocking?

Technically, yes, but it doesn't make sense. To re-block it, you need to: Switch the official Fastboot. ROM Use the Mi Flash Tool with clean all and lock option. Use the fastboot oem lock command (not working on all versions). MIUI). However: The warranty will still be voided. All modifications (root, custom software) will be removed. On some firmware, re-blocking leads to hard-brick.

Why is it that mobile or Wi-Fi is not working after unlocking?

This is a typical problem in the loss. IMEI or the wrong modem firmware: 📶 Recovery IMEI: V TWRP Backup the sections. modemst1 and modemst2 (If it's not too late, use the tool. QCN Rebuilder or Maui META Recovery (requires skills). 🔄 Reflashing modems: Download Fastboot ROM - For your model, extract the files. modem.img and run them through fastboot flash modem. modem.img 📡 Checking settings APN: Sometimes it is enough to manually add settings. APN Your operator in the settings → Mobile network → Access points (APN). If the problem persists, run the full Fastboot. ROM clean-all.

Which custom firmware is best for the Mi 8 in 2026?

For Xiaomi Mi 8 (dipper) current options: Firmware Basis Pros Cons Link LineageOS 20 Android 13 Stability, pure Android No branded features Xiaomi XDA Pixel Experience Android 13 Interface like on Pixel, good camera Sometimes bugs with Bluetooth XDA MIUI EU MIUI 14 All the features MIUI, No bloat Updates less common than official xiaomi.eu HaventOS Android 12 Optimized for performance Less customization XDA Before installing, check compatibility with your bootloader version (for example, Android 12 firmware won’t work if you have Android 10).