Running back firmware on Xiaomi Redmi Note 5: a complete guide with a guarantee from the breech

Why are Redmi Note 5 owners returning to older MIUI versions?

Xiaomi Redmi Note 5 (codenamed whyred) is still popular with users, despite the release of new models. However, MIUI updates do not always bring improvements: many face slowdowns, overheating or incompatibility of applications after the upgrade. rollback of firmware is the only way to restore stability, but the process requires caution: wrong actions can turn the phone into a brick.

In this article, you will find the latest downgrade techniques for Redmi Note 5, including bootloader preparation, firmware selection, and Fastboot or TWRP Recovery recovery. We will also look at common errors that cause data loss or device lock, and provide backup recommendations.

Preparing for a rollback: what to do before the start

Before you start downgrade, make sure that all the preliminary steps are followed. Neglect of preparation is the main reason for the device blink, starting with checking the current version of MIUI and the status of the bootloader.

First, check the firmware version:

1. Go to Settings → About Phone → MIUI version.
2. Write down the current version (e.g. MIUI 14.0.5) and build number (e.g. V14.0.5.0.TEIMIXM).

This will help you choose a compatible firmware for rollback.

Check the status of the loader:

1. Turn off the phone.
2. Press Volume Down + Power to enter Fastboot.
3. Connect the device to your PC and type in the command: fastboot oem device-info If you see Device unlocked: true in the answer, the bootloader is unlocked. If false, it needs to be unlocked (more on this below).

⚠️ Attention: Retracement to the version MIUI older than the one installed at the time of unlocking the bootloader, can lead to permanent locking of the device (hard-brick.

• 🔋 Battery charge: at least 70% interruption due to discharge = lamb.
• 📱 Backup: copy photos, contacts and apps to your PC or cloud.
• 🖥️ Drivers: Install Mi Flash Tool and drivers for Redmi Note 5.
• 🔗 Cable: Use the original cable USB-Cheap analogues can interrupt data transmission.

Unlocking the bootloader: a mandatory step before rollback

If the Redmi Note 5 bootloader is locked, a firmware rollback is not possible. Xiaomi has introduced this security measure since 2017, so unlocking requires official permission through the Mi Account.

The process takes 3 to 30 days (depending on Xiaomi’s policy) and includes the following steps:

1. Linking your device to your Mi Account: Go to Settings → Xiaomi Account → Mi Cloud. Enable synchronization and confirm the binding via SMS.

Request for unblocking:

• Download the Mi Unlock Tool (PC version).
• Sign in to the tool under the same account as on the phone.
• Connect Redmi Note 5 in Fastboot mode and follow the program instructions.

⚠️ Note: Xiaomi may reject the request if: Mi Account was created less than 30 days ago. the device was linked to another account earlier. MIUI). In such cases, use workarounds (described below).

Once successfully unlocked, the bootloader will remain open, but Xiaomi can automatically lock it again the next official update. To avoid this, turn off auto-updates in Settings → About Phone → System Update.

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If the Mi Unlock Tool gives you a "Couldn't unlock" error, try using the 2.3.803.1 version of the tool, which often works where newer versions fail.

Selecting a firmware for rollback: which versions of MIUI are compatible with the Redmi Note 5

Not all MIUI versions are suitable for downgrade. Redmi Note 5 (whyred) supports firmware based on Android 8.1 (Oreo) and 9.0 (Pie), but there are nuances:

• 📌 Official stable versions: the most secure, but limited in functionality, MIUI 10.2.3.0 (Android 8.1) or MIUI 11.0.6.0 (Android 9.0).
• 🧪 Beta versions: may contain bugs, but often offer new features, MIUI 12 Beta for testers.
• 🔧 Custom firmware: such as Pixel Experience or LineageOS, but require an unlocked bootloader and TWRP.

Where to download the firmware:

Critical: If you roll back from MIUI 12+ to MIUI 11 or older, be sure to select firmware marked anti-rollback (e.g. MIUI 11.0.6.0 Anti4). Otherwise, the device will lock at boot stage.

Download the version for the Whyred (Redmi Note 5)|Check compatibility with current Android|Select type (Fastboot or Recovery)|Verification MD5-hash file after downloading-->

Recovery: Fastboot vs Recovery

There are two main ways to roll back firmware on Redmi Note 5: via Fastboot and Recovery (TWRP), the first is suitable for official firmware, the second is for custom or if you need to save some data.

Method 1: Recoil through Fastboot (recommended for beginners)

This is the most reliable method for installing official firmware.

• 🖥️ PC with installation ADB and Fastboot.
• 📁 Firmware in.tgz format (unpacked in folder).
• 🔌 Original. USB-cable.

Step-by-step:

1. Unpack the firmware in a folder (for example, C:\MIUI\whyred_global_images_...).
2. Turn off the phone and press Volume Down + Power to log into the Fastboot.
3. Connect the device to your PC and start the Mi Flash Tool.
4. In the program, select the firmware folder, specify the device (whyred) and press Flash.
5. Wait for the end (5-10 minutes). The phone will reboot automatically.

Method 2: Recoil through TWRP Recovery (for power users)

This method allows custom firmware installation or data-saving rollback (if you choose Wipe Dalvik/Cache instead of a full reset), but it requires TWRP Recovery to be installed first.

Instructions:

1. Download TWRP for whyred and firmware in.zip format.
2. Move the firmware file to a memory card or to the phone’s internal memory.
3. Press Volume Up + Power to enter TWRP.
4. Select Wipe → Advanced Wipe and select Dalvik, Cache, System, Data (for clean installation).
5. Return to the main menu, select Install and specify the firmware file.
6. After installation, run Wipe Cache/Dalvik and restart.

⚠️ Note: If, after installation, through TWRP phone hangs on the logo MI, So, the firmware is incompatible with the current version of the anti-rollback. MIUI via Fastboot with a complete reset.

Typical errors and their solutions

Even if you follow the instructions accurately, you can have problems, and let's look at the most common ones and how to fix them.

If the phone does not detect after the rollback SIM-maps, check the firmware region, MIUI Global may not support Russian operators. Solution: MIUI EEA (Europe) or MIUI Russia.

Another common problem is the loss of IMEI, which is caused by a modem partition being reset when the firmware is not correct, and you can restore the IMEI through the engineering menu.

1. Dial ##4636###.
2. Go to Phone Information and check for IMEI status.
3. If you don’t have an IMEI, use the SN Write Tool (requires Xiaomi authorization).

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If the phone overheats or discharges quickly after a rollback, calibrate the battery: completely discharge the device, then charge to 100% without interruptions.

Data recovery after rollback

A firmware rollback erases all data from the device, but it can be recovered if a backup is made. Let's look at how to get it back.

Recovery through Mi Cloud

If synchronization with Mi Cloud was enabled before rollback, it is simple to return the data:

1. After the first setup of the phone, log in to the same Mi Account.
2. In the recovery menu, select a backup (if any).
3. Confirm the restoration of contacts, messages and notes.

Limitation:

Recovery through TWRP Backup

If you made a backup through TWRP before rolling back, restore it:

1. Download to TWRP Recovery.
2. Select Restore and specify a backup folder (usually /TWRP/BACKUPS/...).
3. Mark the partitions for recovery (Data, System, don't touch!).
4. Confirm the action and wait for the completion.

To recover photos and videos, use programs like DiskDigger or Recuva if the files have not been overwritten, connect your phone to your PC in MTP mode and scan the internal memory.

⚠️ Note: Do not recover data from backups made on a newer version MIUI, This can lead to system failures or a reboot cycle.

FAQ: Answers to Frequent Questions