Unlocking the bootloader on Xiaomi Redmi Note 7: recovery after the “brick”

Why Redmi Note 7 is turning into a brick and what to do about it

Xiaomi Redmi Note 7 (codenamed lavender) is one of the brand’s most popular devices, but its owners often face the problem of a software “brick” – a condition in which the phone stops loading, hangs on the Mi logo or does not respond to the power button at all. The main reasons are a failed firmware through Fastboot, an interrupted update through Recovery, experiments with custom ROMs or accidental removal of system partitions.

The main difficulty is that the blocked bootloader does not allow you to install alternative software or restore the device by standard methods. Xiaomi blocks the bootloader by default to protect against unauthorized changes, but this also complicates recovery from failures. Without unlocking, you will not be able to flash the phone through the Mi Flash Tool or install TWRP, the key tools for “resuscitation”.

In this article, we will discuss the legitimate and safe ways to unlock a bootloader on a “brick” Redmi Note 7, even if the phone does not turn on. Importantly, the procedure requires a Mi Account, a confirmed SIM card and patience – Xiaomi can delay the verification of a request for up to 360 hours (15 days).

Preparation: What will be needed to unlock

Before you start rebuilding, you must gather all the necessary things, and without these components, the unlocking process will be impossible or will fail.

• 🔌 Cable USB Type-C (original or high-quality – cheap cables can interrupt the connection).
• 💻 Computer running Windows 7/10/11 (Mi Unlock Tool requires full driver support).
• 📱 Mi Account tied to phone before breakdown (if account was not tied, recovery will be complicated).
• 📶 SIM card with number tied to Mi Account (required for the SMS-confirmation).
• 🔧 Archive with tools: Mi Unlock Tool, Qualcomm drivers, Fastboot firmware for lavender.

Pay special attention to the firmware versions. For the Redmi Note 7, only official builds from Xiaomi labeled Global or China (depending on the region of the device) are suitable. Using firmware from third-party developers on a blocked bootloader will lead to an anti-rollback error and the phone will eventually fail.

⚠️ Note: If the phone was bought from hand and the previous owner did not untie the Mi Account, unlocking the bootloader will be impossible without his participation.

Method 1: Unlocking with Mi Unlock Tool (official method)

This is the only legitimate way Xiaomi has approved, and it works even if the phone doesn't turn on, but requires you to pre-link your Mi Account to the device. If you haven't done this beforehand, go to Method 2.

Algorithm of action:

1. Install drivers. Download Mi Unlock Tool and Qualcomm drivers for Redmi Note 7. Run the driver installer in Windows 7 compatibility mode if errors occur.
2. Launch the Mi Unlock Tool. Sign in to the same Mi Account that was linked to your phone.
3. Put your phone in Fastboot mode. To do this, press Power + Volume Reduction for 10-15 seconds. A bunny that says Fastboot should appear on the screen.
4. Connect your phone to your PC. In Mi Unlock Tool, press Unlock and follow the instructions. SMS-number-code.

Once confirmed, the unlock process will begin, and it can take anywhere from a few minutes to 15 days, depending on Xiaomi's policy, you can track the status of the verification in the tool itself, and if you have a "Couldn't unlock" error, try again in 24 hours.

Download Mi Unlock Tool of the latest version |Install Qualcomm Driver | Link Mi Account to phone in advance |Prepare SIM card for SMS | Charge phone at least 50%-->

Method 2: Bypassing the lock through EDL (emergency mode)

If the phone doesn't respond to buttons or the Mi Unlock Tool doesn't work, it's EDL (Emergency Download Mode) mode, a service mode that allows you to flash the device directly through the Qualcomm port. The method is risky - if you make a mistake, the phone can turn into a "full" brick, but in some cases this is the only chance of recovery.

To enter the EDL on the Redmi Note 7, you will need:

1. Download Fastboot firmware for your model (for example, lavender_global_images_V12.0.3.0.PFGMIXM_20210310.0000.00_10.0_global).
2. Install QDLoader HS-USB Driver (included in the Qualcomm driver package).
3. Use the Mi Flash Tool or QFil utility for firmware.

To transfer the phone to EDL:

1. Turn off the device (if it reacts, hold the power for 20 seconds).
2. Press Power + Volume + Volume Down at the same time and connect the cable to the PC.
3. Device Manager should appear Qualcomm HS-USB QDLoader 9008.

⚠️ Attention: Firmware through EDL Reset all data on the phone, including the binding of the account Mi. If the device was stolen or blocked by the previous owner, this method will not help - you will need official unlock through the service center.

Table: Common mistakes and their solutions

How to avoid a brick in the future: safety tips

Unlocking the bootloader and restoring the Redmi Note 7 is a time-consuming process, so you don't have to do it again, follow the simple rules:

• 🔒 Link your Mi Account in advance, even if you don’t plan to unlock it, it will make it easier to recover in case of a crash.
• 🔋 Do not interrupt the firmware. USB-cable during the process is almost guaranteed to result in a software slice.

Critical information: Starting in 2021, Xiaomi has tightened its bootloader unlock policy. New devices (including the Redmi Note 7 purchased after that date) may need proof of ownership through a service center, even if the Mi Account is tied, due to the fight against theft and fraud.

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If you experiment with firmware a lot, buy a cheap Redmi as a test device, which will save you time and nerves if something goes wrong with the main phone.

Frequent questions about unlocking the Redmi Note 7

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If the phone doesn’t respond to buttons and isn’t detected in Fastboot, the only chance of recovery is EDL mode. However, this method requires experience and can permanently disable the device if it fails.