How to reflash Xiaomi Mi 11 Ultra: a complete guide with unlocking the bootloader and choosing a firmware

Xiaomi Mi 11 Ultra

Global versions

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critical errors that lead to a device “brick” (for example, firmware incompatibility with the version) EEA European models)

Firmware is a difficult process, especially for beginners, and requires care, patience and understanding of what you're doing, and a mistake at any stage can turn your Mi 11 Ultra into a brick, so make sure you're prepared for the risks before you start. If in doubt - it is better to contact specialists or stay on stock firmware with regular OTA-update.

In this instruction, we will consider:

• 🔓 How to unlock the bootloader in the official way (with a wait of 168 hours)
• 📥 Where to Download the Right Firmware for Your Model (and Why You Can't Install the Mi 11 Pro Firmware)
• 🛠️ Step-by-step installation via Fastboot and Recovery
• ⚠️ Typical errors and how to avoid them (for example, why it may disappear after firmware) IMEI)

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1. Preparation for flashing: what to do before the start

Before you start unlocking and installing a new firmware, you need to follow several critical steps, neglecting them can lead to data loss, inoperability of the module. 5G or even a complete failure of the smartphone.

First, back up all the data. Flashing erases the device's internal memory, so save it to your PC or cloud:

• 📸 Photos and videos (including hidden folders) DCIM and Pictures)
• 📱 Contacts, SMS and the log of calls (can be used through MIUI Cloud or Google Account)
• 🎮 Game savers (use Helium or root managers if there is root)
• 📄 Documents and Downloads (check Download and Documents folders)

Note: Some applications (e.g. banking) may block access after changing the firmware due to a change in the fingerprint device.

Second, check the version of your device. To do this, go to Settings. → The phone. → Version. MIUI and write it down:

• Model of the device (should be) M2102K1G for the global version or M2102K1C Chinese)
• Current version MIUI (for example, MIUI 14.0.5.0.TKACNXM)
• Firmware region (CN, Global, EEA, IN etc.)

⚠️ Note: Installing firmware not for your region (e.g., Chinese on the global model) will result in inoperability LTE, Wi-Fi 6E and NFC. In some cases, this can only be corrected through a service center.

Third, prepare your PC and tools:

• 🖥️ Windows computer 10/11 (for Mac/Linux Additional drivers will be required)
• 🔌 Original. USB-cable (better from the kit, as cheap cables may not transmit data to Fastboot)
• 🔋 Battery charge of at least 60% (during firmware, the smartphone should not turn off)
• 🛠️ Utilities: Mi Unlock Tool, Mi Flash Tool, Qualcomm drivers HS-USB QDLoader 9008

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2 Unlock the bootloader: the official way from Xiaomi

The bootloader on the Mi 11 Ultra is blocked by default, and unlocking it is a mandatory step before any firmware other than the one on the device. OTA-Xiaomi provides an official tool for this procedure, but with a number of restrictions.

The first step is to link your Mi Account to your device:

1. Go to Settings → Xiaomi Account and log in.
2. Turn on the settings. → Additionally. → For developers → Unlocking OEM (If there is no item, tap 7 times on the version MIUI under the heading “On the telephone»).
3. Connect your smartphone to your PC, launch the Mi Unlock Tool and log in to the same account.

⚠️ Note: If you previously unlocked the bootloader on another Xiaomi device, the new smartphone can only be connected after 30 days.This restriction is valid from 2022.

Once the account is attached, the 168 hours (7 days) countdown will begin, which is mandatory for all new Xiaomi devices and cannot be circumvented legally.

1. Start the Mi Unlock Tool again.
2. Transfer the smartphone to Fastboot mode (turn off, then press Volume down + Power).
3. Connect to the PC and press Unlock in the program.

If the process is successful, you'll see a message called Unlocked successfully. You can now install any firmware, but remember, unlocking resets the device to factory settings.

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If the Mi Unlock Tool gives you a 99% error, try using a different version of the program (e.g. 3.5.1118.45) or connect to another version. USB-port (preferably 2.0).

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3. Selection of firmware: which version MIUI set up

There are several types of firmware that you can install on the Mi 11 Ultra, and the choice depends on your goals.

Where to download the official firmware:

• 🌍 Global/EEA: Xiaomi official website (choose star - codename Mi) 11 Ultra)

It is critical to choose the firmware for your model, for example, the firmware for the Mi 11 Pro (mars) will not work for the Mi 11 Ultra (star), even if the version is not the same. MIUI You also need to pay attention to the type of installation.

Recovery ROM

Fastboot ROM

Mi Flash Tool

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4. Install firmware via Fastboot (recommended method)

Installation via Fastboot is the most reliable way to flash the Mi 11 Ultra, as it completely rewrites all partitions, including boot and recovery. ROM).

Step-by-step:

1. Download the firmware (for example, star_global_images_V14.0.5.0.TKAMIXM_20231012.0000.00_12.0_global_1234567890.tgz) and unpack it into a folder without Cyrillic characters (for example, C:\Mi11Ultra\fastboot).
2. Install Qualcomm drivers HS-USB QDLoader 9008 (Available via Mi Flash Tool).
3. Turn off your smartphone and put it in Fastboot mode: Press Volume Down + Power for 10 seconds.
4. Connect to your PC and start the Mi Flash Tool.
5. In the program, click Select and specify the path to the folder with unpacked firmware.
6. Select Clean All or Clean All and Lock (if you want to lock the bootloader after you have been firmware).
7. Press Flash and wait until it is completed (the process will take 5-10 minutes).

Make sure the loader is unlocked|The firmware was downloaded for the model star (Mi 11 Ultra)|Disabled antivirus (it can block the Mi Flash Tool)|Battery charge over 50%|Use the original USB-cable-->

If the process is successful, the smartphone will automatically restart, and it can take up to 15 minutes to turn on the first one, which is normal. MI For more than 20 minutes, try to reflash with the Clean All option.

⚠️ Note: If you have lost your firmware after IMEI If your mobile network is not working, it means that the firmware is not compatible with your modem. IMEI You can use the engineering menu (#4636##) or the utility. QCN Rebuilder, but it requires root rights.

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5. Installation via Recovery (for power users)

This method is suitable for installing Recovery ROM It is less reliable than Fastboot, but allows you to save some data (when you choose Update instead of Wipe).

First, you need to install a custom recap, for example, TWRP:

1. Download the latest version TWRP for Mi 11 Ultra from the official website (file) twrp-3.7.0_12-star.img).
2. Transfer the smartphone to Fastboot and connect to the PC.
3. Open the command line in the folder with TWRP Next Post:Fastboot Flash Recovery twrp-3.7.0_12-star.img fastboot reboot recovery

After installation of TWRP:

1. Download the firmware in.zip format (for example, xiaomi.eu_multi_HMK40SPro_Mi11Ultra_V14.0.5.0.TKACNXM_v14-13.zip) and place it on the internal memory or SD-map.
2. V TWRP Choose the Wipe → Advanced Wipe and mark Dalvik, Cache, Data (if you need a clean installation).
3. Press Install, select a firmware file and confirm the installation.
4. Once completed, run the Wipe Cache and restart.

If you install Xiaomi.eu, you may need to adjust the following after the first download:

• 🔄 Turn on the settings. → Additionally. → Region and choose your country.
• 📱 Install Google services manually if they are not available (download NikGapps for your version of Android).

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Installation through TWRP It allows you to save data when you update your firmware (choosing Update over Wipe), but increases the risk of bugs).

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Typical errors and their solutions

Even with strict adherence to the instructions, problems can arise, and here are the most common mistakes and ways to correct them:

If after firmware, the smartphone boots, but not all functions work (for example, the camera or fingerprint does not work), this may be due to:

• 📸 Lack of necessary drivers in custom firmware (try to flash vendor and firmware manually).
• 🔧 Wrong version MIUI (For example, firmware for Android 12 on a device with Android 13).
• 🔄 Conflict with previously installed Magisk modules (you need to make Uninstall Magisk before the firmware).

If nothing helps, go back to the stock firmware via the Mi Flash Tool with a Clean all and lock option.This will restore the device to factory status, but lock the bootloader again.

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7.After firmware: optimization and verification

After successful installation of a new firmware, several steps must be taken to ensure the stability of the device.

The first thing to do is check the basic functions:

• 📶 Mobile Network: Call another phone, check mobile internet (4G/5G).
• 📷 Camera: Take a photo on the main and front cameras, check the zoom 120x.
• 🔑 Biometrics: Set up a fingerprint and facial recognition.
• 🔋 Charging: Make sure that fast charging is done (67W) working properly.

If you have installed custom firmware (such as Xiaomi.eu or PixelExperience), it is recommended that:

1. Turn off Settings → Battery → Optimization MIUI (This will improve the operation of background processes).
2. Install Magisk to obtain root rights (if necessary).
3. Set up Settings → Screen. → Update frequency at 120 Hz (in some firmware, 60 Hz is the default).

To improve autonomy on custom firmware, you can use Perseus or Stable Kernel cores, but this requires additional manipulations with the help of the user. boot.img.

⚠️ Note: If after the firmware Xiaomi.eu stopped working banking applications (for example, SberBank or Tinkoff), install the module MagiskHide Props Config and change the fingerprint to stock for your model. otherwise the application will detect root.

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FAQ: Frequent questions about reflashing Mi 11 Ultra