The situation when the owner of Xiaomi Mi 9 is faced with the need to unlock the device arises for various reasons: it can be a forgotten pattern lock, locking the Mi Account after flashing or wanting to get full administrator rights to install custom software. Model Mi 9, based on the Snapdragon 855 processor, has powerful protection that is not so easy to get around without special knowledge.
It's important to know what you mean by "unlock." If you're talking about unlocking the screen, you'll have one algorithm. If you want to unlock the bootloader to make a deep modification, it'll take a lot longer and it'll take a lot of preparation. If you're not doing it right, it can actually make the device completely inoperable.
In this article, we will take a look at all legal and technical ways to restore access, we will look at the standard methods of resetting, the procedure for official unlocking through the manufacturer’s servers, and the nuances of working with Fastboot mode.
Differences in the types of locks in the MIUI system
Before taking action, you need to clearly understand the protection architecture built into the MIUI shell. Users often confuse screen locking with bootloader locking, which leads to the wrong choice of recovery tools. Lock Screen is a software barrier that protects personal data from prying eyes when the device is on.
The second layer of protection is Mi Account, which is a cloud service that links a device to a specific user, and if Find Device is activated, even after you completely reset the phone, you need to enter your account password, which is effective protection against theft, but a headache for forgetful owners.
⚠️ Warning: Locked Bootloader prevents unofficial firmware installation. Until "Locked" status, you won't be able to get root rights or install custom Recovery.
The third type is regional restrictions and carrier locks, although this is less relevant for the global versions of the Xiaomi Mi 9. Understanding which barrier to overcome saves hours of pointless attempts.
| Type of lockdown | Symptoms | Method of decision |
|---|---|---|
| Lock screen | Requirement of a pattern lock, PIN-fingerprint | Hard Reset or Reset via Mi Cloud |
| Mi Account | Requesting login and password after resetting settings | Restoration of access or check service |
| Loader (BL) | Impossible firmware, message "Device is locked" in Fastboot | Official application for Mi Unlock |
| FRP (Google) | Google Account Request After Reset | Specialized software or bypass |
Each of these cases requires a personalized approach. For example, removing FRP (Factory Reset Protection) on new versions of Android becomes more difficult with each security update. Owners of the Mi 9 should be especially careful with experimental methods, since the hardware platform is sensitive to errors in (partitions) memory.
Resetting the forgotten screen password through Recovery
If you forget your pattern lock or pin, the most effective regular method is to enter recovery mode, which means completely erasing all user data, including photos, contacts and apps. The Xiaomi Mi 9 is standard, but has its own navigation features.
You need to turn the device off completely. Then press the volume button and the power button at the same time. Hold them until the Mi logo appears, then release the power button, while continuing to hold the volume, and you will be taken to the main Recovery Mode menu.
- 📱 Navigation is done with volume buttons (up/down), and the choice is confirmed by the power button.
- 🗑️ Select Wipe Data, then Wipe All Data.
- ✅ Confirm the action by selecting Confirm and wait for the process to be completed.
Once the reset is successful, the system will restart. It will take a few minutes to set up the initial setup. It's important to understand that if a Mi or Google account is activated on a device, the system will require their authorization, and this is an Anti-theft protection mechanism that can't be bypassed by a simple reset.
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If the volume buttons don’t work, try connecting your phone to your PC via USB-cable and clamping the desired combination, sometimes it helps to enter Recovery mode.
In some cases, if USB debugging is enabled and superuser rights have been obtained previously, you can try to delete key files via ADB. However, for the average user who is faced with a locked screen, Hard Reset remains the only option available without using paid software.
Official unlocking of the bootloader (Bootloader)
Unlocking the bootloader is the process that enthusiasts need to install custom firmware such as LineageOS or Pixel Experience. Xiaomi provides the official Mi Unlock Tool, but the procedure is strictly regulated. You will need a stable Internet connection and Mi Account.
The first step is to link the device to your account. Go to Settings → About Phone and quickly tap 7 times on the MIUI version to activate the developer menu. Next, go to Additional → For Developers and enable the OEM Unlocking option.
⚠️ Attention: Once an account is tied, it is often necessary to wait 7 to 168 hours (1 to 7 days) before directly unlocking.
To unlock yourself, download the Mi Unlock utility to a Windows computer. Transfer your phone to Fastboot mode (clamping the volume button when the phone is turned off and connecting it to the phone). USB-In the utility, log in to the same Mi Account as on your phone and press the Unlock button.
The unlocking process will completely clear the device's internal memory, a security measure to prevent malicious actors from stealing data. Make sure you back up important files in advance. The bootloader status will change from Locked to Unlocked, which will be displayed every time the device is booted.
☑️ Checklist for unlocking BL
Using Fastboot and ADB for advanced users
Fastboot mode is a low-level protocol that allows you to interact with the memory partitions of the phone directly. For Xiaomi Mi 9, it is the main tool for flashing and diagnostics. Fastboot requires the Android SDK Platform Tools installed on the PC.
To check the status of the device, connect the phone in Fastboot mode to the computer and type in the command line, check the command. If the drivers are installed correctly, you will see the serial number of the device and the word fastboot. This confirms readiness to execute commands.
fastboot devicesOne useful feature is the ability to force a reboot or change the active firmware slot (relevant for devices with A/B partition).However, just being in Fastboot, you will not be able to unlock a device without the corresponding token from Xiaomi servers if the bootloader is locked.
Secret Fastboot teams
When working with partitions, it is important not to damage critical areas such as persist or modem. Damage to these partitions can lead to loss of the fingerprint scanner function or disappearance of the IMEI. Always check the compatibility of firmware with a particular model (dipper is codenamed Mi 9).
Mi Account and Factory Reset Protection
Mi Account (FRP) locking is a serious obstacle, activated if the user resets through Recovery or buttons without first logging out, which the system considers an attempt at unauthorized access.
The only legal way to (unlock) this lock is to remember your account information. If you change your password, try to restore access through i.mi.com. Entering the correct data will remove the lock forever. No button combinations here will help, because the check is at the server level.
- 🔒 The lock is tied to a unique device identifier.
- 🌐 To check the status of the lock requires an Internet connection (Wi-Fi or Internet connection). SIM).
- 🛡️ Resetting through computer utilities without authorization does not remove account protection.
There are service centers equipped to remove such locks, but this often requires replacing the motherboard or complex soldering of memory chips, which is not economically feasible for the Mi 9.
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A forgotten password from Mi Account makes the device virtually useless after a reset. Always keep your account details in a safe place.