How to safely roll back firmware on Xiaomi Redmi 8: 3 proven ways

A firmware rollback on Xiaomi Redmi 8 can be needed in a variety of situations, from bugs in the new version of MIUI to incompatibility with your favorite apps. But this process requires caution — the wrong actions can turn a smartphone into a “brick.” Unlike installing updates, rollbacks are often blocked by the manufacturer, so standard methods do not work here.

In this article, we will discuss three officially supported methods of firmware rollback: through Recovery, Fastboot and Mi Flash Tool. You will learn how to prepare a device, where to download the correct version of MIUI for Redmi 8 (codenamed olive), and how to avoid typical errors like anti-rollback or logo getting stuck.

Important: the procedure requires an unlocked bootloader. If you've never unlocked it before, you'll have to wait 72 to 168 hours for approval from Xiaomi. Check the lock status in advance!

Why you might need to roll back firmware on Redmi 8

Newer versions of MIUI don't always bring improvements, but here are the most common reasons why users go back to the old firmware:

• 🐞 Critical bugs: Constant reboots, system applications (e.g., com.android.phone), or black screens after an update.
• 🔋 Battery problems: A sharp reduction in battery life (for example, after upgrading to MIUI14 on the Redmi 8, many complain about a discharge in 4-5 hours).
• 🎮 Game incompatibility: Some titles (such as Genshin Impact or Call of Duty Mobile) refuse to run on newer versions of MIUI due to changes in the kernel.
• 📱 Feature loss: In newer firmware, Xiaomi often removes useful features (such as Second Space or manually adjusting the color temperature of the screen).
• 🔒 Security Errors: Rarely, but it is possible that an update introduces vulnerabilities (e.g., problems with Google Play Protect or SSL certificates).

Before you start rolling back, make sure that the problem is the firmware.

1. Make a reset to factory settings (without rolling back the MIUI version).
2. Check the work on a clean system (without recovering data from the backup).
3. Install an alternative launcher (like Nova Launcher) to eliminate shell bugs.

If you have a problem with this, it’s time to go back to the old version of MIUI, but remember, rolling back to a version older than the one installed on the device out of the box can result in hardware locking due to the anti-rollback mechanism.

Preparation for rollback: what to do in advance

Incorrect preparation is the main reason for the Redmi 8's "bricking" and follow this checklist to avoid mistakes:

Download the correct version MIUI olive|Check the status of bootloader|Make a backup copy of the data|Charge your phone at least 60%|Install Xiaomi drivers on PC|Prepare. USB-cable (original!)-->

1. Identify the current and target versions of MIUI

Go to Settings → About → MIUI. Write down the current version (e.g. MIUI Global 14.0.2 Stable). The target version should be newer than the factory version (you can find it by the serial number on the Xiaomi website or in the settings in All Specifications).

2. Download firmware for Redmi 8 (olive)

Official firmware for rollbacks can only be obtained from the Xiaomi site, choose the Stable version marked Recovery or Fastboot (depending on the method).

• 📥 olive_global_images_V12.5.2.0.RCPCNXM_20220315.0000.00_11.0_global_1d1a4d5b7e.tgz is a Fastboot firmware for rollback on MIUI 12.5.
• 📥 miui_OLIVEGlobal_V12.0.3.0.QCPCNXM_2f5a3d1c7e_10.0.zip is a recovery firmware for MIUI 12.0.

3. Unlock bootloader (unless done previously)

Without the unlocked bootloader, a rollback via Fastboot or Mi Flash Tool is not possible.

1. Use the official Mi Unlock Tool to unlock.

💡

If you already have a bootloader unlocked but it's been more than 30 days since you last unlocked, the system may require you to re-link your account.

4. Make a backup copy.

Firmware rollback erases all data!

• 📱 Xiaomi Built-in Backup: Settings → Additional → Backup and Reset.
• 💾 TWRP (if installed): Create a full backup of /data.
• ☁️ Cloud Services: Copy photos and contacts in Google Photos and Google Contacts.

Method 1: Recovery (the safest method)

This method is suitable if:

• ✅ You do not have a bootloader unlocked (but you do need to unlock OEM).
• ✅ You roll back to the stable version MIUI, which is older than the factory version.
• ✅ The phone turns on and goes into Recovery.

Instructions:

1. Download Recovery firmware (file with.zip extension) for Redmi 8 from the official website.
2. Rename the file to update.zip and move it to the root folder of internal memory (not to folders!).
3. Turn off the phone. Press Volume up + Power to enter Recovery.
4. Select the language, then: Install update.zip to System → confirm the choice.
5. After you complete the process, select Reboot to System.

⚠️ Warning: If the phone has been getting stuck on the MI logo for more than 10 minutes after the reboot, then the firmware is not compatible with your anti-rollback version.

Advantages of the method:

• ✔️ Does not require a connection to a PC.
• ✔️ Stores data (if the firmware is compatible).
• ✔️ Minimum risk of error.

Disadvantages:

• ❌ Does not work with all versions of MIUI.
• ❌ It may not work if the bootloader is locked.

Method 2: Recoil from Fastboot (for power users)

This method is more reliable, but requires an unlocked bootloader and command line work.

• 🔓 You've unlocked your bootloader.
• 💻 There is access to a Windows PC.
• 🔧 You are ready for a complete data dump.

Instructions:

1. Download the Fastboot firmware (.tgz file) and unpack it into the C:\miui_rom folder.
2. Install Qualcomm drivers for Redmi 8.
3. Turn off the phone. Press Volume down + Power to enter the Fastboot (a hare in a hat will appear).
4. Connect your phone to your PC. Open the Command Prompt in the firmware folder and type in:

fastboot flash boot boot.img


fastboot flash recovery recovery.img




fastboot flash system system.img




fastboot flash vendor vendor.img




fastboot flash dtbo dtbo.img




fastboot flash vbmeta vbmeta.img




fastboot erase userdata




fastboot reboot

⚠️ Warning: If the phone is stuck on the logo after the fastboot reboot command, then the firmware is incompatible with your anti-rollback.

1. Get back on Fastboot.
2. Run fastboot erase userdata and fastboot erase cache.
3. Repeat the firmware with the correct version of MIUI.

Compatibility table for Redmi 8 (olive):

💡

A rollback to a version older than MIUI 12.0 on Redmi 8 almost always results in hardware locking. Use only official firmware marked "Stable."

Method 3: Recoil from Mi Flash Tool (for Windows)

Mi Flash Tool is Xiaomi's official firmware utility for Fastboot, which automates the process but requires strict adherence to instructions.

Step-by-step:

1. Download and install the Mi Flash Tool (version 2020 or later).
2. Download Fastboot firmware for olive and unpack it into a spaceless folder (e.g., C:\olive_fastboot).
3. Turn off your phone and log in to Fastboot (Loudness Down + Power).
4. Connect your phone to your PC. In the Mi Flash Tool, press Select and specify the firmware folder.
5. At the bottom, select Clean all and lock (if you want to lock the bootloader after you have firmware) or Clean all (if the bootloader remains unlocked).
6. Press Flash and wait until it is completed (5-10 minutes).

⚠️ Warning: If there is an error flash_write_failed or an anti-rollback check fail in the process, you are trying to install too old firmware. Interrupt the process and select a newer version MIUI.

Advantages of the method:

• ✔️ Automatically check file integrity.
• ✔️ Ability to block bootloader after firmware.
• ✔️ Supports all official Xiaomi firmware.

Disadvantages:

• ❌ Works only on Windows.
• ❌ Requires an unlocked bootloader.
• ❌ Deletes all data without recovery.

What to do if Redmi 8 does not turn on after rollback

If the phone is stuck on the logo, restarting in a loop, or doesn’t respond to buttons, follow this algorithm:

1. Wait 15-20 minutes. The first download after a rollback can take a long time.
2. Try to go to Recovery (Loudness up + Nutrition):
3. If Recovery is not available:

If the phone is not detected by PC

• Check the drivers (install Xiaomi Drivers).
• Try another USB- cable (original!) and a USB 2.0 port.

If nothing works, maybe the anti-rollback worked.

• 🔧 Try flashing the newest stable version MIUI for olive.
• 📞 Contact Xiaomi Service Center – they can reflash the device via EDL- mode (requires an authorized account).

Frequent Mistakes and How to Avoid Them

Even experienced users make mistakes when rolling back firmware, and here are the most common ways to solve them:

Additional advice:

• 🔌 Do not use USB- hubs — connect the phone directly to the USB- port on the motherboard.
• 🖥️ Disable the antivirus – it can block firmware files.
• 📡 Do not interrupt the process—even if nothing seems to be happening, wait 10-15 minutes.

FAQ: Answers to Frequent Questions