Modern Xiaomi, Redmi and Poco smartphones receive regular software updates that not only add new features, but are critical to data security. Many users are faced with the fact that the standard notification in the settings does not come, or the installation process is suspended on a certain percentage. Understanding the mechanisms of the Android system in the shell of MIUI or the new HyperOS avoids data loss and turning the device into a “brick”.
The firmware process can range from a simple push of a button to complex computer and command line manipulations, interrupting the process of writing system files when the battery is below 50% in 90% of cases leads to the inability to boot the system. In this article, we will discuss all current methods of updating, from the staff OTA-request to manually install via Recovery and Mi Flash so you can choose the best option for your situation.
Preparing the device for firmware update
Before you start any manipulation of the system partition, you need to perform a number of preparatory steps: these are not just formalities, but mandatory conditions, failure to comply with which can lead to the loss of personal photos, contacts and passwords. Make sure that your device is charged to a minimum of 60-70%, as a voltage surge or discharge at a critical point in the recording can fatally damage the bootloader.
Make a full backup. Xiaomi’s ecosystem has a powerful tool built in to do this that even saves the placement of icons on the desktop. Go to Settings → About Phone → Backup and save data to a memory card or computer. It is also recommended to sync contacts and notes with a Google or Mi Account account.
Free up space in internal memory. The update file can weigh from 2 GB to 5 GB, but to unpack and install it, the system requires free space 2-3 times the size of the archive itself. If there is not enough memory, the system will simply prevent the installation process from starting, giving an error or hanging during the verification phase.
☑️ Checklist before firmware
Connection stability is another key factor: If you plan to upgrade over the air, make sure that the Wi-Fi signal is stable. Using 4G/5G mobile networks to load heavy packets is not recommended due to the risk of connection breakage and the need to download gigabytes again.
Standard method: OTA-update through settings
The easiest and safest way to get a new version of software is through the OTA (Over-The-Air) mechanism, which checks the servers for new builds that are suitable for your region and model, and usually the notifications come in waves, first to the developers' devices, then to a random sample of users, and then to all other devices.
To initiate manual verification, go to Settings → About Phone and click on a large version icon (such as the MIUI 14 or HyperOS logo). If the update is available, a Download button will appear. In some cases, if the server does not see your device in line, you can click on the version logo several times in a row, which sometimes forces the appearance of a download link.
Once the file is uploaded, the device will suggest restarting, at which point the phone will go into Recovery mode, where it will automatically check the integrity of the files, install the new system, and clear the cache. The whole process takes 5 to 15 minutes, depending on the speed of the smartphone's flash memory. Do not touch the device at this time.
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If the Download button is not active, but there is an update icon in the notification curtain, try clearing the Update app cache through the app menu or wait 2-3 days.
Users often complain that the same model with the same version of software updates come to different people at different times, a normal practice of Xiaomi, allowing you to track possible bugs on a small group of devices before a mass rollout. If you can't wait, move to manual methods.
Manual installation via Recovery (Local Update)
The manual installation method allows you to update the phone, even if OTA-The update hasn’t officially arrived yet, or if you want to upgrade to a specific firmware version (e.g., Chinese to Global, although this requires unlocking the bootloader). You will need a firmware file in.zip format, which you need to download from a trusted resource, such as miui.com or trusted forums.
Copy the downloaded archive to the root of the phone's internal memory. Don't put it in folders, use the root directory so the system can easily find it. Then open the Settings → About Phone app and tap the system version. In the window that opens, click on the three dots in the upper right corner and select Choose update package.
The system will check the file for model compliance. If all is right, the preparation process will begin. Here it is important to understand the difference between versions: you can upgrade from an older version to a newer version without losing data. However, if you try to roll back to an older version or change the region (Global to China), the system will require a complete reset of data (Wipe Data).
Why does the system say "failed to update"?
Once the file selection is confirmed, the phone will go into reboot and start installing. Unlike OTA, this method often takes longer to verify signatures. Make sure that in the process, the phone is on a flat surface and no one presses the power button.
Update via computer: Mi Flash and Fastboot
For advanced users and cases where the phone does not load normally, there is a method of firmware through the computer using the Mi Flash Tool utility. ADB/Fastboot It's a unlocked bootloader (most of the time) that allows you to completely clean your phone and install a clean system.
First, you need to turn your smartphone into Fastboot mode. To do this, turn off the device, then press the volume button and connect the USB cable to the computer. The screen will show an image of a rabbit repairing an android and the inscription Fastboot. Download the firmware image in.tgz (not.zip!) and unpack it on your computer.
Launch the Mi Flash Tool on behalf of the administrator. Press the Refresh button to show the device (serial number will be displayed). Enter the file with the unpacked firmware folder. At the bottom of the window, select the correct mode:
- 🟢 Clean all – clean all data and install a new system (recommended when switching between Android versions).
- 🔵 Save user data – an attempt to save data (only works when updating within one version of Android and often causes errors).
- 🔴 Clean all and lock – data cleanup and bootloader lock (use only with the original firmware for the region, otherwise you get a brick).
Press the Flash button and wait until the process is over. The status bar turns green with the word "success." After that, the phone will reboot itself. The first download can last up to 10-15 minutes, which is normal for the application optimization process.
Use the lock option only if you are 100% sure of the origin of the file.
Comparison of update methods: table
To make it easier for you to choose the right method, we have prepared a comparative table of the main characteristics of each method, which will help you to weigh the risks and the necessary efforts.
| Parameter | OTA (Airway) | Local Update (Recovery) | Mi Flash (PC) |
|---|---|---|---|
| Difficulty | Minimum | Medium | Tall. |
| Data retention | Yes (full) | Yes (upgrade) | Only in Clean All mode (data is lost) |
| Requirements | Wi-Fi, charge. | ZIP-file, memory space | PC, cable, drivers, unlocked BL |
| Risk of error | Low. | Medium. | High (with incorrect actions) |
As you can see from the table, for the average user, OTA remains the best option. The Recovery method is good for those who want to speed up the process of receiving updates, but are afraid to contact the computer. Mi Flash is a tool of "heavy artillery" for recovery or complete firmware.
Common mistakes and ways to solve them
There can be a lot of disruptions during the upgrade process, and one of the most common problems is Bootloop, where the phone is constantly showing the Mi logo and not loading any further, which is often when system files conflict or record interruption. The solution is to enter Recovery mode (clamp Volume Up). + Power) and perform Wipe Data reset.
⚠️ WARNING: Executing Wipe Data in Recovery mode will permanently delete all photos, contacts and apps from your phone’s internal memory. Use this only if the backup is saved to your computer or in the cloud.
Another common error is "Backet damaged" when installed via Local Update. ZIP-Try to download the file again, preferably from another source or using a different browser, and check if the archive is encrypted (the password on the archive will not allow the system to read it).
If the phone says "Not enough memory" even though there's room, try clearing the Update cache. Go to Settings → Apps → All Apps → Software Update → Memory → Clean. Sometimes it helps to rename the firmware file to a simple name, like update.zip, and move it to the root of the download folder.
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Most update errors are not due to hardware malfunctions, but to file integrity or space shortages, and careful preparation solves 95 percent of the problems.
In rare cases, you may need to flash through EDL mode (Emergency Download Loader), when the phone does not respond to any buttons and only the charging indicator is lit. This requires a special cable, Mi Account with rights and a paid authorization service, so it is better to entrust this procedure to professionals.