How to Sweat Xiaomi Through a Computer: The Complete 2026 Guide

Firmware Xiaomi smartphone through the computer — a process that may be necessary to update the system, install custom firmware or restore the device after a failure. OTA-Updates (over the air), firmware via PC gives more control: you can choose a specific version MIUI, Bypass regional restrictions or even install an alternative OS like LineageOS or Pixel Experience, but this method requires care – a mistake at any stage can turn a smartphone into a brick».

In this article, we will discuss all the stages: from preparing the device and unlocking the bootloader to selecting the firmware and installing it through the Mi Flash Tool or Fastboot. Particular attention will be paid to the risks of loss of warranty when using informal firmware and the nuances of working with models on the Qualcomm and Mediatek platform. If you are a beginner, do not miss the sections on backup and checking the compatibility of firmware files!

Preparation for firmware: what to do before the start

Before you connect your smartphone to your PC, follow a few critical steps that can lead to data loss, locking your device, or even breaking it.

First, back up all your data. Fastboot or Mi Flash Tool completely erases your device's internal memory. Use Settings → Google → Backup to save contacts, photos and apps, and a full backup is good for Xiaomi ADB/Fastboot Tools or manual file copying on your PC. This is especially true for devices with an unlocked bootloader, they are more likely to be a target for crashes.

Second, check your smartphone model and its encoding. 10 Pro may have versions for the global market (sweet), China (sweetin) or India (sweetin_in). Installing firmware from another modification will lead to errors such as Invalid image or complete inoperability of the communication module. → The phone. → Version. MIUI (Click several times on the line with the version to get more information).

• 📱 Check the battery power, at least 60 percent. The firmware can take up to 30 minutes, and the discharge in the process will interrupt the operation.
• 🔌 Use the original. USB-Cheap cables often don't provide a stable connection in Fastboot mode.
• 🖥️ Disable the antivirus on your PC – it can block firmware files or Mi Flash Tool utilities.
• 🔒 Unlock the bootloader (unless done earlier). Without this, the official firmware via Fastboot will not install.

⚠️ Note: If your Xiaomi was purchased in China (suffixed version _CN), firmware MIUI It can block the network because of differences in communication modules, in which case you will need a patch for modem or a complete replacement of firmware with customized.

Unlocking the bootloader: a mandatory step for firmware

The bootloader on all Xiaomi smartphones is locked by default, a security measure that prevents uncertified software from being installed. To flash the device through a PC, it must be unlocked, otherwise the Mi Flash Tool will give an error device is locked.

The unlocking process includes several stages:

1. Link your Mi Account to your device. Go to Settings → Xiaomi Account → Mi Cloud and log in. Without this step, unlocking is impossible.
2. Request permission via the Mi Unlock Tool. Download it from the official website, run it on behalf of the administrator and follow the instructions. Please note: Xiaomi may refuse to unlock if the device was activated less than 7 days ago.
3. Connect in Fastboot mode. Turn off your smartphone, then press Volume Down + Power to log into Fastboot. Connect to your PC and wait for the process to be completed in the Mi Unlock Tool.

Once successfully unlocked, the screen will show the message Unlocked. Now you can install any firmware, but remember: this will cancel the warranty (if it is still valid) and increase the risk of malware infection. Also, some features like Mi Pay or Face Unlock may stop working.

Firmware selection: official MIUI vs custom builds

The type of firmware that determines not only the functionality of the device, but also the stability of its operation, the official MIUI builds are divided into two categories:

• 📦 Stable versions – tested releases with minimal bugs, suitable for everyday use, but updated less often.
• 🛠️ Developmental Versions (Developer) ROM) — They contain new features, but they may have critical errors.

Custom firmware (e.g. LineageOS, Pixel Experience, Havoc OS) offers pure Android without Xiaomi's branded bells and whistles, but requires an unlocked bootloader and often lacks support for some features (e.g. IR Blaster or Always-on Display).These are justified if you are annoyed by ads in MIUI or want to get the latest version of Android on an outdated device.

Where to download firmware:

• 🌍 Officially MIUI: Xiaomi website (select a version for your model!).
• 🔧 Custom firmware: XDA Developers or SourceForge (look for themes for your model).
• 📂 Firmware Updater (current and old versions).

⚠️ Note: Firmware from unofficial sources (such as torrent trackers) may contain malicious code or be modified to mine cryptocurrency. Always check the hash amounts of files (MD5 or SHA-1) with those listed on the developer's website.

Installation of drivers and preparation of PC

Without properly installed drivers, Windows won’t recognize a smartphone in Fastboot or EDL mode. Even if the device is defined as Android Bootloader Interface, it doesn’t guarantee stable performance with the Mi Flash Tool.

Follow this algorithm:

1. Download the Mi Flash Tool from the official website (the version must match your OS: 32-bit or 64-bit).
2. Install drivers: For Qualcomm: use the QDLoader HS-USB Driver (part of the Mi Flash Tool package). For Mediatek: download MediaTek USB VCOM drivers from the SP Flash Tool site.

Turn off driver signature verification

bcdedit /set nointegritychecks on


bcdedit /set testsigning on

Then restart the PC.

Check the connection.

Fastboot

fastboot devices

If the device is displayed (for example, 1234abcd fastboot) – the drivers are installed correctly.

No additional drivers are required for MacOS or Linux, but you may need to manually configure access rights to the Mac OS. /dev-MacOS also recommends using Android File Transfer for stable connection.

Firmware through Mi Flash Tool: step-by-step instructions

Mi Flash Tool is Xiaomi’s official Fastboot firmware utility, which supports all models on the Qualcomm platform (e.g. Redmi Note 11 Pro+, Poco F4) and some devices on Mediatek (but SP Flash Tool is more commonly used for them).

Instructions:

1. Unpack the firmware in a folder without Cyrillic characters (for example, C:\MIUI\fastboot_rom). The file must have the.tgz or.zip extension – it must be removed before the.img folder appears.
2. Launch the Mi Flash Tool on behalf of the administrator. Press Select and point the path to the firmware folder.
3. Connect your smartphone in Fastboot mode (clip Volume down) + Power when the device is off. The utility should appear COM-port, COM3).
4. Select the firmware method: Clean all – complete cleaning (recommended when changing the version of MIUI); Clean all and lock – cleaning + locking the bootloader (only for official firmware!); Save user data – saving user data (risky, can lead to errors).

Flash

If the process is stuck in the waiting for device phase, check:

• 🔌 Cable and port USB (Try the port on the back of the PC).
• 🔄 Reinstall drivers manually through Device Manager.
• 🔧 Try another version of the Mi Flash Tool (e.g. 20180528 instead of the latest one).

💡

If after firmware, the smartphone is stuck on the MI logo, press Volume up + Power for 10 seconds to reset the cache. If this does not help, repeat the firmware with a full clean (Clean all).

Firmware through Fastboot (manual method)

If the Mi Flash Tool refuses to work or you need more control over the process, you can manually flash the device through Fastboot.This method is universal and suitable for most Xiaomi models, including those that are not supported by the official utility.

You'll need:

• 📂 Unpacked firmware (folder with.img files).
• 🖥️ ADB Fastboot (download Platform Tools from Google).
• 📝 The list of commands for your model (may vary!).

Steps:

1. Open the command prompt in the firmware folder (click Shift + right mouse button → Open the PowerShell window here).
2. Check the connection: fastboot devices
3. Scroll each section in turn (example for Redmi Note 10 Pro): fastboot flash boot boot.img fastboot flash recovery.img fastboot flash recovery system.img fastboot flash vendor.img fastboot flash dtbo dtbo.img fastboot flash vbmeta vbmeta.img
4. Clear the cache: fastboot erase cache fastboot erase userdata
5. Reboot the device: fastboot reboot

For Mediatek devices (e.g. Redmi 9A, Poco C31), BROM mode and SP Flash Tool are used instead of Fastboot. The process is more complex and requires separate guidance - we recommend looking for instructions for a specific model on XDA Developers.

⚠️ Note: If you are applying for custom recovery (e.g, TWRP), First, disable signature verification in the bootloader command: fastboot flashing unlock_critical Without this, the device can be blocked!

Frequent mistakes and their solutions

Even with the correct following of the instructions, errors can occur, and here are the most common ways to correct them:

If none of the methods helped, and the device does not turn on (even in Fastboot), the last option remains – firmware through the device. EDL-Emergency Download Mode: This method requires an authorized Xiaomi account and a special cable (EDL cable, as the connection is directly to port 9008. EDL It is better to search on profile forums - wrong actions can finally bring the device down.

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90% of firmware errors are due to firmware and device model incompatibility or misinstalled drivers. Always double-check firmware name and hash file amounts!

FAQ: Answers to Frequent Questions