Recoil from Android 11 to Android 10 on Xiaomi: a safe downgrade of firmware

Switching to a new version of Android is not always justified - many Xiaomi users face slowdowns, bugs or app incompatibility after upgrading to Android 11. If you decide to return to a proven Android 10, it is important to understand that this is not just a "cancel update", but a full-fledged flashing of the device with the risk of data loss and potential blocking. In this article, we will discuss the only officially supported way of a downgrade - through Fastboot with an unlocked bootloader, as well as alternative methods for experienced users.

The process differs from the standard “over the air” update and requires preparation: backup, unlock bootloader, select the correct version of the firmware and work with tools like Mi Flash Tool. Errors at any stage can lead to a “brick” (inoperability) of the device, so we will describe each step in detail, taking into account the nuances for different models Xiaomi, Redmi and other devices. POCO.

Before you start, answer two key questions: why do you want to roll back (bugs, performance, no root rights?) and are you prepared for possible consequences like a data dump or a loss of warranty, and if the answers are yes, we start preparing.

1. Downgrade preparation: what to do before firmware

The first and most important step is to save all the data, and rollback on Android 10 will result in a complete reset of the device, so:

• 📱 Create a backup through Settings → Google → Backup (will keep contacts, SMS, application settings).
• 🖥️ Copy photos, videos and documents to your PC or cloud (Google Drive, Mi Cloud).
• 🔑 Write down usernames/passwords from accounts (especially Mi Account – it will be required to unlock).
• 📋 Save it. IMEI Devices (type *#06# in the dialer number).

Next, check your device’s model and its downgrade support. Not all Xiaomi smartphones allow you to return to the old firmware officially. POCO X3 NFC (The process will be different from the Mi 10 (umi) and check the code name of your model on the Xiaomi Flash website or through the app. CPU-Z.

⚠️ Note: If your device was purchased with Android 11 preinstalled (such as the 2021 Redmi Note 10 Pro), the manufacturer may block the downgrade at the bootloader level, in which case trying to install Android 10 will lead to an anti-rollback error and a possible blink.

The final step is to check the status of the bootloader, and if it is locked (which is typical for new devices), it will have to be unlocked through the Mi Unlock Tool, which takes up to 72 hours to wait and requires the Mi Account to be linked to the device.

Make a backup copy of all data |

Clarify the code name of the device model|

Check the current status of the bootloader (locked/unlocked)|

Download Mi Unlock Tool and drivers for PC|

Prepare. USB-cable (original, without damage)|-->

2 Unlocking the bootloader: a mandatory step for a downgrade

The bootloader on all modern Xiaomi smartphones is locked by default, and any custom or older firmware must be unlocked, and the process consists of three steps:

1. Linking Mi Account to your device: Go to Settings → Xiaomi account → Mi Cloud and log in. Then go to Settings. → The phone. → Version. MIUI Tap 7 times on the line "Version" MIUI", To activate the developer mode. Go back to Settings. → Additionally. → For developers and include OEM-unlocking and debugging USB.
2. Unlock Tool Request: Download Mi Unlock Tool on PC, connect your phone in Fastboot mode (click Power) + Volume down when the device is off and follow the instructions.Please note: the first request may take up to 3 days (168 hours) of waiting!
3. Unlock Confirmation: Once the process is completed successfully, the Mi Unlock Tool will have the message Unlocked successfully.

⚠️ Warning: Unlocking the bootloader resets all data on the device, even if you haven't started the firmware. This process can also void the warranty (check the terms with the authorized dealer).

If you get a Couldn’t unlock or Device not supported error, it means that:

• 🔹 The device is too new (like Xiaomi 12 with Android 12 out of the box) and doesn’t support downgrade.
• 🔹 You use the unofficial version of the Mi Unlock Tool (download only from the official website).
• 🔹 Mi Account not tied to device for more than 7 days (waiting required).

💡

If unlocking is delayed, try using another Windows PC. 10/11 original USB-Some users report that the process is faster when connected through the port. USB 2.0 (usually black on the system unit).

3.Selecting the Right Firmware for Downgrade

You can’t just take any Android 10 firmware – it must match:

• 📱 The code name of your model (for example, raphael for Redmi) K20 Pro).
• 🌍 Region (Global, China, EEA, Installing firmware for another region can lead to network or language pack problems.
• 🔄 Anti-rollback versions: If the firmware is older than the current rollback version, the device will be locked.

Official firmware can be downloaded from resources:

• 🔗 Official website MIUI (Choose the Stable or Weekly versions).
• 🔗 Xiaomi Firmware Updater (alternative source with archive of old versions).
• 🔗 XDA Developers (for custom firmware, if an official downgrade is not possible).

An example of the correct firmware file name for POCO F2 Pro (lmi):

lmi_global_images_V12.0.3.0.QJKMIXM_20201202.0000.00_10.0_global_6d5a0a3b7c.tgz

Here:

• lmi is the code name for the device.
• Global is a region.
• V12.0.3.0.QJKMIXM — version MIUI.
• 10.0 is the Android version.

⚠️ Note: If the firmware name indicates Android 11 (for example, 11.0), But you downloaded it from the Android section. 10, It's a site error. Always check the contents of the archive -- in the file. flash_all.bat should be android-10.

4. Firmware through Fastboot: step-by-step instructions

The most reliable way to install Android 10 is to use Fastboot mode and the Mi Flash Tool.

• 🖥️ Windows PC 10/11 (on macOS/Linux Possible problems with drivers).
• 🔌 Original. USB-cable (do not use extension cords!).
• 📁 Unpacked firmware in a folder without Cyrillic symbols on the way.
• 🛠️ The Mi Flash Tool.

Instructions:

1. Connect the device in Fastboot mode: Turn off the phone, then pinch the Power + Loudness down before the Fastboot logo appears (robot with the inscription) FASTBOOT). Connect to the PC.
2. Install drivers: If the PC does not recognize the device, download the Xiaomi drivers and install them manually through Device Manager.
3. Run Mi Flash Tool: Select the folder with the unpacked firmware, press Refresh - your device should appear in the list. At the bottom, select Clean all mode or Clean all and lock mode. + lock-up).
4. Start the firmware: Press Flash and wait until it is completed (usually) 5-10 Do not turn off the cable or leave the program!

Once the firmware is successful, the device will automatically restart. It can take up to 15 minutes to launch the first one, don't interrupt. MIUI And the inscription Android 10 in the settings, downgrade was successful.

5. Alternative methods: TWRP and custom firmware

If an official downgrade via Fastboot is not possible (for example, due to anti-rollback), there is an option with custom recaveri. TWRP And then we run it through it, and it's a much riskier method:

• 🔓 The loader is already unlocked.
• 📲 Compatible version TWRP For your model (download only from the official website).
• 📦 Firmware in.zip format (for example, LineageOS or ported) MIUI Android 10 based).

Instructions:

1. Install. TWRP Fastboot: Fastboot Flash Recovery twrp-3.5.2_10-0-raphael.img fastboot boot twrp-3.5.2_10-0-raphael.img
2. In TWRP, run Wipe → Format Data (enter yes for confirmation).
3. Transfer the firmware to the device through MTP or ADB Sideload.
4. Install the firmware through Install → Select ZIP.

⚠️ Note: Using custom firmware can lead to problems with Widevine L1 (no HD into Netflix/Disney+), non-functioning sensors or modules NFC. Also, some banking applications (Sberbank, Tinkoff) can block work on uncertified firmware.

For models with anti-rollback (for example, Redmi Note 8 Pro with MediaTek), the only way out is to search for “bypass” firmware on forums like XDA or 4PDA. However, such manipulations are fraught with a complete loss of the device's performance.

💡

If your device supports official downgrade via Fastboot, DO NOT use alternative methods. TWRP — The last option, when there are no other ways.

6.Post-Downhraid Problems and Their Solutions

Even a successful rollback on Android 10 can be accompanied by bugs, and here are the most common problems and ways to fix them:

If the sound is gone after a downgrade, the camera or sensors are not working, most likely you have installed firmware for another modification of the device (for example, Global instead of Global). EEA). In this case, only a repeat firmware with the right region will help.

For recovery. IMEI (If he dropped to 0 or Null):

1. Download. SN Writer Tool.
2. Sign in via Mi Account (requires an unlocked account with developer rights).
3. Enter the originals IMEI1 and IMEI2 (box-and-check).
4. Connect the phone in mode EDL (emergency mode, requires a special cable or testpoint).

💡

If banking applications (Sberbank, Tinkoff) have stopped working after a downgrade, install the MagiskHide Props Config module in Magisk and activate root rights hiding for these applications.

7 How to Avoid Anti-Rollback and Other Blocking

Anti-rollback is a security mechanism that prevents you from installing firmware older than a particular version, and if your device falls under this protection, you will make a downgrade attempt.

Anti-rollback check fail!

or a full lock of the loader (hard brick).

Check if your model is under the anti-rollback:

• 🔍 Go to Fastboot and execute the command: fastboot getvar anti If the answer is anti: 3 or higher, a downgrade on Android 10 is impossible without risk.
• 📋 Check the compatibility table on Xiaomi Firmware Updater.

If the recoil has already worked and the device does not turn on:

1. Try flashing the same version of Android 11 as it was before downgrade (sometimes this removes the lock).
2. Contact Xiaomi Service Center – They Can Restore Your Device EDL (fee).
3. On some models (like the Redmi Note 7), firmware through TestPoint helps, but it requires soldering and experience.

⚠️ Warning: If your device was released from Android 11 out of the box (like the 2021 Redmi Note 10 Pro), a downgrade attempt is almost guaranteed to result in an anti-rollback, in which case the only way out is to stay on Android 11 or install custom firmware with a security bypass (risky).

8.Conclusion: Should I roll back on Android 10?

Downgrade from Android 11 to Android 10 is not just an upgrade, but a full-fledged firmware reflash with all the risks involved. Before making a decision, weigh the pros and cons:

• ✅ Pluses: 🔥 Returning to previous performance (especially on weak devices like the Redmi Note 8). 🛠️ Opportunity to get root rights (on Android 11, many methods do not work). 🎨 More stable work of custom themes and modifications.
• ❌ Cons: 🚨 Risk of anti-rollback and device loss. 🔄 Losing all data (even with a backup, recovery doesn’t always go smoothly). 🔒 Possible security issues (no recent patches on Android 10). 📱 Loss of some features (for example, Scoped Storage in Android 11 improved the work with files).

If your goal is to get rid of bugs, try alternative solutions:

• 🔄 Install a custom core (e.g., FrancoKernel) to optimize performance.
• 🧹 Perform reset to factory settings through Settings → System system → Reset.
• 🛡️ Turn off unnecessary Android 11 features (like Adaptive Battery or once-only Permissions).

If you're determined to roll back, follow the instructions strictly by the steps and don't miss the check-up steps.

💡

Downgrade is only justified if Android 11 critically interferes with the device. In all other cases, consider alternatives: optimization of the current firmware, custom cores or waiting for updates from Xiaomi.

FAQ: Frequent questions on downgrad