Xiaomi Redmi 9 (codenamed Lancelot) remains a popular budget smartphone even years after its release, but over time, users face the need to reflash the device β whether it is recovery from a crash, upgrade to the current version. MIUI Or switching to custom firmware. The main problem is where to download the full firmware (not the one you want to download). OTA-Update! to avoid errors such as Error: Device is locked or Anti-rollback check?
In this article, you will find the current ways for 2026 to download official firmware for Redmi 9, both through Xiaomi tools and through third-party resources.
- π How to determine the exact model and firmware version of your device
- π₯ Official sources: MIUI Downloads, Xiaomi Firmware Updater and Fastboot Mode
- β οΈ Risks of using unofficial firmware and how to minimize them
- π οΈ Step-by-step instructions for preparing files for installation through the Mi Flash Tool
Important: Firmware is not just a system update; full firmware (Fastboot or Recovery) contains all partitions of the device, including boot, system and vendor. It requires caution: improper actions can lead to a device "brick" if you violate the rules of the anti-rollback.
1. How to find out the current firmware version and Redmi 9 model
Before you download the firmware, make sure you choose the right version. Redmi 9 has several modifications:
- π± Redmi 9 (Lancelot - Global version (EEA/Global)
- π± Redmi 9 Prime (lancelot_in) β Indian
- π± Redmi 9C/9A (angelica/angelican) β Other models of the line (not compatible!)
To test your model:
- Open the Settings. β The phone.
- Find the lines Model (should be M2004J19C for global version) and MIUI (e.g. MIUI Global 14.0.5 Stable).
- Write down the build number (e.g. QKQ1.200216.002) and it will be useful for compatibility checks.
If the phone doesn't turn on, you can recognize the model by the label on the box or under the battery (for collapsible models). Never install firmware from another modification - this is guaranteed to bring the device down!
2. Official firmware sources for Redmi 9
Xiaomi provides several legal ways to download firmware, and let's take a look at them in order, from the most reliable to the alternative.
MIUI Downloads website (new.miui.com)
The official MIUI Downloads portal contains all stable and beta firmware versions.
- Select the Redmi 9 tab (or type lancelot in search).
- Pay attention to the columns: π Region β Choose Global or EEA (Europe) π¦ Type β Fastboot (full firmware) or Recovery (for installation via stock recovery) π Version β stable (stable) or development (developer)
Download the file (weight ~2-3 GB for Fastboot).
Advantage: 100% original files without modifications. Disadvantage: sometimes there are no old versions, and new ones appear with a delay.
2.2. Xiaomi Firmware Updater (xfupdater.com)
The third-party but reliable Xiaomi Firmware Updater aggregates firmware from all regions, and you can find outdated versions if you want to roll back.
Instructions:
- Enter lancelot in the search bar.
- Filter by region (Global/EEA) and type (Fastboot/Recovery).
- Download a file with the.tgz (Fastboot) or.zip (Recovery) extension.
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If you donβt have the right version, try the archive mirrors: MIUI ROM or SourceForge.
Through the Mi Flash Tool (for locked devices)
If the phone does not turn on, but you have unlocked the bootloader, you can download the firmware directly in the Mi Flash Tool:
- Connect Redmi 9 to Fastboot (Plug Power) + Volβ off-phone).
- In the Mi Flash Tool, click Select and select the firmware folder (if it is already downloaded) or Download for automatic download.
- The program will select the current version for your model.
Always check the hash amount of the file (MD5/SHA1) before installing it, which can be compared to the official one on MIUI Downloads. Use utilities like 7-Zip or HashMyFiles for this.
How to check MD5-hash?
4.Preparation for installation: unlock the bootloader and Mi Flash Tool
Downloading firmware is half the job. To install it, you need to prepare the device.
Unlocking the bootloader (Bootloader)
By default, Xiaomi blocks the bootloader. To install the Fastboot firmware, it must be unlocked:
- Link Mi Account to your phone in Settings β Xiaomi Account.
- Activate debugging via USB: Settings β About Phone β MIUI version (click 7 times), then Additional β For Developers β Debugging via USB.
- Install the Mi Unlock Tool and follow the instructions (it will take 7-15 days for new accounts to be installed).
β οΈ Attention: Unlocking resets all data on the phone! make a backup through Settings β Additionally. β Backup.
Installation via Mi Flash Tool
For Fastboot Firmware:
Loader unlocked|The correct version of the firmware (Fastboot) is downloaded)|Xiaomi drivers installed|Battery charge > 50%|Data backup made.-->
- Unpack the downloaded.tgz archive in a folder (for example, C:\lancelot_fastboot).
- Connect your phone in Fastboot mode (press Power + Volβ).
- In the Mi Flash Tool, click Select and specify the firmware folder.
- Choose the firmware method: π Clean all β full reset (recommended when changing region). π Clean all and lock - reset + locking the loader (cautiously!). π Save user data β data retention is not always stable).
Flash
If the process is 99 percent frozen or there is an Anti-rollback check fail error, you are trying to install an older version.
- πΉ Try to stream a newer version.
- πΉ Use Recovery firmware instead of Fastboot (if the bootloader is blocked).
5.Installation via Recovery: If Fastboot doesn't fit
If the bootloader is locked or you prefer a safer method, you can install the firmware through stock recovery.
- Download the Recovery firmware (.zip file).
- Rename it to update.zip and put it in the root of your internal memory.
- Go to Recovery: Turn off the phone, then press Power + Vol+.
- Select Install update.zip (control β volume and power buttons).
β οΈ Note: This method only works for official recovery firmware. ZIP (For example, LineageOS requires you to TWRP.
If the phone is stuck on the MI logo after installation, reset via Recovery (Wipe Data).
6. Frequent errors and their solutions
Even with the right actions, there can be problems, and let's look at the common mistakes and how to fix them:
| Mistake. | Reason. | Decision |
|---|---|---|
| Device is locked | The bootloader is not unlocked | Unlock with Mi Unlock Tool or use Recovery firmware |
| Anti-rollback check fail | Trying to install the old version | Sweep through a newer firmware or the same version as the current one |
| This package is for "lancelot" devices; this is a "" | Wrong firmware model | Download firmware specifically for lancelot (not angelica or lancelot_in) |
| The phone does not turn on after the firmware | Incompatible version or failure | Repeat the firmware through Fastboot with a full reset (Clean all) |
If none of the methods worked, try flashing the device through EDL-This will require an authorized Xiaomi account and the Mi Flash Pro program. This method is more complicated and risky - contact it only as a last resort.
1. Compatibility of the model (lancelot vs) lancelot_in).
2. firmware version (not lower than the current one, if there is an anti-rollback).
3. battery charge (minimum 50%).
4. backup of data (firmware can erase everything!).-->