How to return the previous firmware on Xiaomi Redmi Note 7: secure downgrade MIUI

Owners of Xiaomi Redmi Note 7 (codename lavender) often face the need to return the previous version of the firmware. The reasons are different: bugs in the new MIUI, performance decline, unsuccessful updates or just nostalgia for stable operation. However, downgrade on Redmi Note 7 is a process more difficult than the usual installation of updates.

In this article, we will discuss all the formal and informal ways to roll back firmware, including unlocking the bootloader, choosing the right version of MIUI, and step-by-step instructions for different scenarios. We will focus on critical errors that lead to the loss of IMEI or the failure of the NFC module after a downgrade. If you are not sure about yourself, it is better to entrust the process to specialists, since the wrong actions can deprive the warranty or completely disable the device.

Why you might need to roll back firmware on the Redmi Note 7

Changing firmware to an older version is not a typical task for a regular user, and this is usually done in three cases:

• 🔄 Critical bugs in the new MIUI: For example, after updating to MIUI 14 on Redmi Note 7, many users have complained about spontaneous reboots, Bluetooth issues or a broken camera in some apps.
• 🐢 Lower performance: Newer firmware versions are often optimized for more modern models, leading to lags and slowdowns on the Redmi Note. 7 (particularly 3/32 GB memory).
• 🔓 Incompatibility with modifications: If you used Magisk, Xposed or custom cores, the new firmware can block their work or cause conflicts.
• 📡 Network problems: some updates MIUI «break down the work with telecom operators (for example, VoLTE disappears or does not catch) 4G).

However, before proceeding to the downgrade, check whether you can solve the problem differently:

• 🔧 Reset the settings to factory (Settings) → The phone. → Resetting settings).
• 🧹 Clean the cache through Recovery (clutch the power) + Volume up when switched on).
• 📱 Try to roll back through Fastboot without unlocking the bootloader (if the firmware version supports this method).

⚠️ Attention: Firmware rollback on Redmi Note 7 Android 10 Android 9 or below may result in data loss in the section /data, Even if you have chosen the option to save user files, always back up via Mi Cloud or TWRP!

Preparing for Downgrade: What to Do Before Starting

Unprepared firmware rollback is a sure way to get a brick. Before starting the procedure, follow the mandatory steps:

1. Check the current version of MIUI and bootloader: Go to Settings → About Phone → MIUI Version. Write down the full build number (e.g. V14.0.2.0.SFGCNXM). Find out the bootloader version: type in the dialer ##4636##, then go to Phone Information → bootloader version.
2. Download the correct firmware: Use only official firmware from Xiaomi Firmware or Xiaomi Firmware Updater. Redmi Note 7 (lavender) only works with lavender-marked firmware in the file name. Don't download firmware for Redmi Note 7 Pro (violet) - they're incompatible!

Backup

• Sync your contacts, photos and apps with Mi Cloud.
• Copy important files to a PC or external drive.
• Make a backup through TWRP (if installed).

Also prepare the tools:

• 🖥️ Windows computer 7/10/11 (For the Mi Flash Tool).
• 🔌 Cable USB Type-C (original or high-quality).
• 🔧 The Mi Unlock Tool and Mi Flash Tool, ADB & Fastboot.
• 🔋 Battery charge of at least 60% (to avoid shutdown during the process).

Ways to roll back firmware: which to choose

There are three main ways to revert to the previous MIUI version on the Redmi Note 7, depending on the current state of the device and your experience:

Let’s look at each method in more detail.

Method 1: Recovery (the safest)

This method is suitable if you want to go back to 1-2 versions of MIUI without changing the version of Android (for example, from MIUI 13.0.5 to MIUI 13.0.2). The main advantage is that you do not need to unlock the bootloader, and the data can be saved.

Instructions:

1. Download the full firmware (file with.zip extension) for your model from the Xiaomi website.
2. Rename the file to update.zip and move it to the root folder of the phone’s internal memory.
3. Turn off the phone, then press Power + Volume up to enter Recovery.
4. Select a language, then go to Install update.zip to System One (or similar).
5. Confirm the installation and wait until it is completed (usually takes 5-10 minutes).
6. After the reboot, check the MIUI version in the settings.

⚠️ If after rollback the phone hung on the Redmi logo for longer than 15 minutes, reset via Recovery (Wipe Data). → Wipe All Data. This will help avoid reboot cycles.

💡

If there is no installation point in Recovery update.zip, Try renaming the file to miui_LAVENDERGlobal_V12.0.1.0.PFGMIXM_....zip (indicating the current version) Sometimes a standard name helps to bypass the restrictions.

Method 2: Recoil from Fastboot (Mi Flash Tool)

This method allows you to install any version of MIUI, including a downgrade on Android 9 with Android 10. However, it requires an unlocked bootloader and results in a complete data reset.

Step-by-step:

1. Unlock the bootloader: Apply for unlock through Xiaomi's official website. Connect your phone in Fastboot mode (press Power + Volume Down when turned on). Launch Mi Unlock Tool and follow the instructions (it may take 7-30 days for approval).
2. Install the firmware through the Mi Flash Tool: Download the Fastboot firmware (.tgz or.zip file) and unpack it. Launch the Mi Flash Tool, select the firmware folder. Connect the phone in Fastboot mode and press Refresh. Select the cleaning method: Clean All is a full reset (recommended). Clean All and Lock is a reset + lock of the bootloader (if you need to return the warranty).

Flash

Once rebooted, the phone will be in a "out of the box" state.Restore data from the backup, but take your time to return root rights or modifications - check the stability of the work first.

Method 3: Recoil through TWRP (for power users)

This is a good way to do it if you already have custom TWRP recovery installed, and it allows you to save data and install modified firmware, but you need to be careful.

Instructions:

1. Download firmware in.zip format (for example, with Xiaomi Firmware Updater).
2. Move the file to internal memory or SD-map.
3. Boot to TWRP (clip Power + Volume up when turned on).
4. Make a backup of the current firmware (Backup) → Select sections → Swipe to Backup).
5. Go to Wipe → Advanced Wipe and mark: Dalvik / ART Cache System Cache

Do not touch the data if you want to save user files.

Install

Reboot System

⚠️ Note: If, after installation, through TWRP The phone doesn’t boot, try flashing Magisk (if it was installed earlier) or perform a full reset via Wipe. → Format Data (this will delete all data!).

Frequent Mistakes and How to Avoid Them

Downgrade firmware on the Redmi Note 7 is fraught with errors that can bring the device down, and here are the most common problems and solutions:

• 🚫 Anti Rollback Error: Manifested when you try to roll back to the version MIUI It's older than the one that was installed in the factory, like if your Redmi Note 7 was originally a product. MIUI 10.2, you will not be able to install MIUI Solution: Look for firmware with the same or newer recoil index.
• 📵 Loss of loss IMEI or Networks: Often occurs when downgraded from Android 10 to Android 9. QCN-File for Redmi Note 7 (see forums) 4PDA or XDA). Squeeze it through. QPST or Mi Flash Tool in mode EDL.

The looped reboot (bootloop)

If the phone is constantly rebooted after rollback:

1. Download to Recovery and run Wipe Data.
2. If it doesn’t work, run the firmware again through Fastboot.
3. 🔋 Phone doesn't turn on after you've run the firmware: Maybe the battery's dead or there's been an error in writing the partition. Connect the charger and try again. If it doesn't work, run through the partition. EDL (You need an authorized Xiaomi account).

💡

Before a downgrade, always check the compatibility of MIUI versions and the recoil index. Installing firmware with a lower index will lead to locking the device!

Data recovery after firmware rollback

If you didn't back up before the downgrade, it's hard to get the data back, but it's possible.

• 📱 Recovery via Mi Cloud: If sync is enabled, contact, note and app details can be returned after you log in to your Xiaomi account.
• 💾 Retrieval of internal memory: If the phone is turned on but the data is erased, try programs like DiskDigger or Recuva (plug the phone in mode) MTP).
• 🔧 Recovery through TWRP: If you had a backup in TWRP, Re-slice custom recovery and restore data from backup.