How to unlock Xiaomi Redmi 9T: from password to bootloader (Step-by-step)

Forgot the pattern lock on Xiaomi Redmi 9T? Phone requires Mi Account after reset? Or need to unlock the bootloader for firmware? In this article, 5 working ways to unlock with all the nuances of the Redmi 9T model (codename lime).

We will look at both standard methods (through Find My Device or hard reset) and advanced methods using the same method. ADB, Mi Unlock Tool and even bypassing the locking of Xiaomi account without losing data. USB-smackdowns, so read carefully.

⚠️ Attention: Unlock the bootloader on Redmi 9T It will reset the phone to the factory settings and delete all the data. If you just want to reset the screen password, use the methods in the first section.

1. unlock the screen (password, PIN, pattern lock)

If you have forgotten your screen unlock password but remember your Mi or Google account details, use the standard recovery methods. 3 options are available on Redmi 9T:

• 🔑 Through Mi: After 5 failed attempts to enter, the button Forgot the password?. Click it and log in to your Xiaomi account (if the phone is tied to you).
• 📧 Through Google (only for Android 9 and below): On the lock screen, tap Forgot the pattern lock? → Enter your Google login and password. On Android 10+ This method doesn't work.
• 📱 Through Find My Device: Go to Google Find My Device from another device, select Redmi 9T and press Lock the device. → ask for a new one PIN.

If these methods don’t work (e.g., the phone isn’t tied to accounts), move to hardware reset (Section 2).

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Before resetting, try connecting Redmi 9T PC-only USB and check if it's on. USB-debugging in Settings → The phone. → Version. MIUI (7 times tap the version. If yes, use the method with ADB (section).

2. Hard Reset (Reset via Recovery)

Hardware reset is a universal way to unlock if you don’t remember your screen or account password. On Redmi 9T, the procedure takes 5-10 minutes, but deletes all data, including photos, apps and settings.

Instructions:

1. Turn off the phone (press Power + Volume up for 10 seconds).
2. Press Power + Volume up until the Mi → logo comes out. Recovery menu will appear.
3. Select the language (volume buttons) → Wipe Data → Wipe All Data.
4. Confirm the reset and wait until it is completed.
5. Restart the phone (Reboot).

Once reset, the phone will turn on as new. If you previously linked your Mi Account, you will need to enter its details (section 4).

3. Unlock through ADB (without data loss)

If the phone is debugging on USB (USB Debugging, you can delete the file with the password through ADB. This method only works until you reboot – after turning off the phone will again require a password.

What you need:

• 🖥️ Computer with Windows/Linux/macOS;
• 🔌 Cable USB (preferably original);
• 🛠️ Utilities. ADB Fastboot (download from Google website).

Instructions:

1. Connect Redmi 9T to your PC and open the command prompt (cmd).
2. Enter the commands in order: adb shell su rm /data/system/gesture.key rm /data/system/password.key rm /data/system/locksettings.db rm /data/system/locksettings.db-wal rm /data/system/locksettings.db-shm reboot
3. After the reset, the password will be reset.

⚠️ Attention: On some firmware MIUI If the su command fails, try rooting first (Section 5).

4.Backpassing the Mi Account lock

Once reset, the Redmi 9T may require you to enter Xiaomi account details even if you don't remember it.This is anti-theft protection, but it can be circumvented legally if your phone is yours.

Official means:

• 📩 Password Recovery: Go to account.xiaomi.com, select Forgot Password? and follow the instructions (requires email or phone number).
• 📞 Xiaomi Support: Write to Chat Support (mi.com/service) Proof of purchase (check, box with IMEI).

Unofficial methods (at your own risk):

• 🛠️ Through EDL-Mode: Requires special cable and firmware via Mi Flash Tool. 9T With the Snapdragon 662 processor, this method only works until the version is available. MIUI 12.5.3.
• 🔧 Firmware Patch: With the help of utilities like MTK Bypass (for experienced users only).

5 Unlocking the bootloader (Bootloader)

If you want to flash Redmi 9T custom firmware (like LineageOS) or get root rights, you first need to unlock the bootloader. Xiaomi officially allows this, but the process takes up to 72 hours due to verification.

Step-by-step:

1. Link your Mi Account to your phone in Settings → Xiaomi account.
2. Activate OEM Unlock in Settings → Additional → For developers.
3. Download the Mi Unlock Tool and launch it on PC.
4. Connect Redmi 9T in Fastboot mode (clip Power + Volume down).
5. Sign in to Mi Unlock Tool under the same account and follow the instructions.

Once the bootloader is unlocked, the phone will automatically reset to factory settings, and you can now flash TWRP or custom software.

⚠️ Attention: Unlock the bootloader on Redmi 9T s MIUI 13+ tie-in SIM-Cards to Mi Account (should be inserted the same) SIM, The same as the first activation of the phone).

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Unlocking the bootloader cancels the Xiaomi warranty and increases the risk of “bricking” the phone with incorrect firmware.

6. Alternative methods and service centers

If nothing has worked, there are two options:

• 🔧 Self-repaired: On Redmi 9T You can reflash a memory chip (eMMC) with a programmer, but it requires soldering skills and equipment (cost) ~3-5 thousand rubles.).
• 🏢 Official service: In authorized centers Xiaomi unlock the phone on the passport and check (price) ~1–2 List of centres: mi.com/ru/service.

Before contacting the service:

• Check if the warranty period has expired (on the box or in the check).
• Make sure your phone is not blacklisted by IMEI (check on imei.info).
• If the phone is bought with hands, ask the seller for proof of deregistration (purchase agreement).

FAQ: Frequent questions about unlocking Redmi 9T