How to reflash blocked Xiaomi Redmi: unlock the bootloader, bypass Mi Account and install firmware

The blocked Xiaomi Redmi smartphone is a problem that users face after resetting, buying a used device or failing firmware. The main reasons for blocking are: binding to a Mi Account account (if the previous owner did not untie the device), activating the Anti-Theft mode or damaging system files. In 90% of cases, the device can be restored, but the process requires accurate follow-up instructions - an error at any stage can turn the phone into a brick.

In this article, we will discuss all the current ways to unlock and flash Redmi (including Note 10/11/12, Redmi 9/10 and others), taking into account the changes in Xiaomi’s policy of 2023-2026.You will learn how to bypass the lock Mi Account without a password, unlock the bootloader officially and unofficially, and install firmware through Fastboot or EDL. Particular attention will be paid to risks: for example, after May 1, 2023, Xiaomi tightened the check of devices in EDL mode, so some methods stopped working.

⚠️ Warning: If your device has been stolen, an attempt to unlock may violate the law.This guide is only for owners who have forgotten account details or bought a phone with a tied Mi Account from a previous seller.

Why Xiaomi Redmi is blocked after a reset or firmware

The Redmi lock after resetting to factory settings or failed firmware is associated with the operation of two protection systems:

1. Mi Account — attaches the device to your account. If you reset your settings and your phone was linked to someone else's account, the system will require you to enter a login/password. This is the standard Find My Device feature, similar to iCloud on your iPhone.

2 Anti-Theft: Activates automatically when reset via Recovery or Fastboot if the device has not been unfettered from the account, unlike Mi Account, this lock can only be bypassed through a full flashing.

Additional reasons for blocking:

• 🔧 Damaged firmware – for example, after an interrupted update MIUI or installing an incompatible version.
• 🔒 Locking bootloader – if you tried to install custom firmware without official unlocking.
• 📱 Hardware reset via Test Point - some models (Redmi Note 8 Pro, Redmi) 9T) are blocked during the forced transition in EDL.

⚠️ Note: If the screen displays a message "This device is locked" with a request to enter a password from Mi Account, and you do not know the data of the previous owner, you can not officially unlock the phone - you will need to bypass through the phone. EDL service-centre.

Preparation for unlocking: what to do before the firmware

Before you start unlocking, be sure to follow these steps:

1. Check the model and firmware version

Go to Settings → About Phone → MIUI version (if the phone is switched on). If the device is locked, you can recognize the model by the sticker under the lid or via the Fastboot command:

fastboot getvar product

2. Download the necessary tools

You'll need:

• 🖥️ Windows PC 10/11 (for the Mi Flash Tool and ADB).
• 🔌 Original. USB-cable (cheap cables may not transmit data to Fastboot).
• 📁 Firmware for your model (official or custom). Download only from trusted sources: the official site of Xiaomi or Xiaomi Firmware Updater.

3. Install the drivers

To work with Fastboot and EDL, you need Qualcomm or MediaTek drivers (depending on the processor). Download them from the manufacturer's website or use the 15 Seconds ADB Installer package.

4. Data backup

If your phone is turned on but locked by your account, try copying important files via ADB (if debugging is enabled):

adb pull /sdcard/path to PC

After a complete flashing, all data will be deleted without the possibility of recovery.

Find out the exact model of the device|Download the firmware for your version|Install drivers Fastboot/EDL|Backup data (if possible)|Prepare original USB-cable-->

Method 1: Unlock the bootloader with official method (via Mi Unlock)

If your device is not tied to someone else’s Mi Account, but the bootloader is locked, you can use the official Mi Unlock Tool, which works for most Redmi models, but has limitations:

✅ Pluses:

• 🔓 Legal method without the risk of "bricking".
• 📱 Supports most models (except the Redmi Note 12 and newer with HyperOS).

❌ Cons:

• ⏳ Requires waiting 7-15 days (if the account is new).
• 📵 It doesn’t work if the device is tied to another Mi Account.

Step-by-step:

1. Download the Mi Unlock Tool and install it on PC.
2. Sign in to Mi Account on your phone (if it is turned on) or via Fastboot.
3. Turn your phone into Fastboot mode: Turn off the device. Press Volume down + Power before the Fastboot logo appears.

Mi Unlock Tool

Unlock

If your account is new, wait for SMS with permission (usually 7 days).

⚠️ Note: On Redmi Note 11 and later, after unlocking the bootloader, Anti-Rollback can work. MIUI past the current!

1. Use another. USB-cable.

2. disable the antivirus on the PC.

3. Run the program on behalf of the administrator.-->

Method 2: Bypassing Mi Account lock via Fastboot (without unlocking the bootloader)

If the phone is locked on the Mi Account screen but the bootloader is not unlocked, you can try bypassing the check via Fastboot.This method does not work on all models, but often helps on the Redmi Note 9/10/11 and Redmi 9A/9C.

What you need:

• 🖥️ PC with installation ADB and Fastboot.
• 📁 A special bypass script (e.g. Mi Account Remove Tool).

Instructions:

1. Transfer the phone to Fastboot (Loudness down + Power).
2. Connect to your PC and check the connection with the command: fastboot devices (should display the serial number of the device).
3. Mi Account: Fastboot erase frp fastboot erase userdata
4. If it goes well, the lock will reset.

⚠️ Note: On models with a MediaTek processor (Redmi) 9A, Redmi 8A) This method may not work – you will need firmware through SP Flash Tool.

Method 3: Flashing through EDL (for Qualcomm devices)

EDL (Emergency Download Mode) is the last chance to restore Redmi if other methods have failed.It allows you to flash a phone even with a locked bootloader, but requires physical access to the board (Test Point closure) or an authorized Xiaomi account.

Supported models:

• 📱 Redmi Note 10/11/12 (on the Qualcomm Snapdragon processor).
• 📱 Redmi 9/9T/9 Power (except for MediaTek versions).
• 📱 POCO X3/X4 and other devices on Qualcomm.

What you need:

• 🔧 Screwdriver for disassembling the phone (if you need Test Point).
• 🖥️ Mi Flash Tool and firmware in.tgz format.

Step-by-step:

Mi Flash Tool

Refresh

COM-port

Flash

⚠️ Note: Since 2023, Xiaomi has been blocking unauthorized firmware in the EDL If the Mi Flash Tool is a bug "SLA Auth Error" will require an authorized developer account (cost) ~$5–$10 on forums).

💡

Firmware via EDL is the most reliable way to restore the brick, but it requires caution. A mistake when choosing a firmware (for example, installing a version for another model) can damage the communication modules or the camera.

Method 4: Flashing through SP Flash Tool (for MediaTek)

If your Redmi is running on a MediaTek processor (Redmi 9A, Redmi 8A, Redmi 7, etc.), the SP Flash Tool is used for firmware. This method is simpler than EDL, but has its own nuances.

What you need:

• 🖥️ SP Flash Tool (version 5.2 or later).

Instructions:

⚠️ Attention: If SP Flash Tool is an error "BROM ERROR: SLA AUTHENTICATION FAIL", So the firmware is secure. MTK Client to bypass protection.

💡

If the phone does not turn on after firmware through the SP Flash Tool, try flashing only the boot and recovery section - sometimes this helps to restore efficiency without completely overwriting the data.

Method 5: Install custom firmware (TWRP + OrangeFox)

If you want to install an alternative firmware (like LineageOS or Pixel Experience), you first need to unlock the bootloader and install custom TWRP or OrangeFox receivers.

Advantages of custom firmware:

• 🚀 No binding to the Mi Account.
• 📱 More customization options (like Google Camera on Redmi Note 10).
• 🔄 Regular updates (as opposed to official updates) MIUI).

Disadvantages:

• ⚠️ Loss of guarantee.
• 📵 Possible problems with the module NFC or camera (depending on the firmware).

Step-by-step:

1. Unlock the bootloader through the Mi Unlock Tool (see Method 1).
2. Download TWRP for your model from the official TWRP or XDA Developers website.
3. Install TWRP via Fastboot: fastboot flash recovery twrp.img fastboot boot twrp.img
4. In TWRP, make a persist partition backup (important for the NFC and IMEI module).
5. Sweep through custom firmware (e.g. Pixel Experience) and GApps (if you need Google services).
6. Clear the cache and restart.

⚠️ Note: On some models (Redmi Note 11, Redmi) K50) Installation of custom firmware can lead to data loss IMEI or a broken camera. Check the reviews before the firmware. XDA forecast.

Frequent mistakes and their solutions

When unlocking and firmware Xiaomi Redmi users often encounter errors, and here are the most common ways to fix them:

If none of the methods worked, there may be a problem with hardware damage (e.g., a damaged eMMC memory chip), in which case only repairs at the service center will help.

FAQ: Answers to Frequent Questions