Redmi smartphones have long proven themselves to be reliable devices, but even they are not immune to software failures. Owners of the Xiaomi Redmi 9A model often face the need to reinstall the operating system due to the “bootloop”, removal of viruses or the desire to change the firmware region. Unlike computers, mobile devices allow you to restore functionality even in case of critical errors using the built-in Recovery Mode.
This process requires care, because incorrect actions can lead to complete inoperability of the gadget. However, following the proven method, you can bring the device back to life without going to the service center. In this article, we will discuss in detail all the steps from preparing files to the first start of the updated system on your device.
It is worth noting that firmware through Recovery is the most secure method for ordinary users, not requiring complex manipulations with Fastboot or computer utilities like Mi Flash Tool. All the necessary tools are already built into the phone itself, and your actions will consist in choosing the right menu items and installing the current update file.
Preparation for flashing and necessary tools
Before you start taking action, you need to make sure you have everything you need. USB-It's also important that the battery of the smartphone is charged at least by a minimum of one. 60-70%, as the process of recording data is energy intensive.
You will need to download the current firmware version for Xiaomi Redmi 9A (codename dandelion). It is important to choose a.zip file designed specifically for installation via Recovery, not for Fastboot. Usually these files have a title prefix recovery and extension.zip, they can weigh from 2 to 4 gigabytes.
- 📱 Charged smartphone Redmi 9A (at least 60% charge).
- 💻 Computer with Internet access to download files.
- 🔌 Original or qualitative USB-data-line.
- 💾 Firmware file recovery.zip, model.
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Before downloading the firmware, be sure to check the exact device model in the About Phone section, as firmware from Redmi 9C or 9AT may not fit or damage the system.
After downloading the firmware file, it must be renamed to update.zip. This is a standard requirement for many recoveries, allowing the system to automatically find the update file. Put this file in the root of the phone's internal memory or on the phone's back. SD-map, if used.
Enable Recovery Mode on Redmi 9A
To enter the engineering menu on Xiaomi devices, a combination of buttons is used, which must be executed correctly and quickly. First, turn off the smartphone completely. Make sure the screen is out and the phone does not make any sounds.
Then, simultaneously press the Volume Up and Power buttons. Hold them until the Mi logo appears, and then the power button can be released while holding the volume key. In a few seconds, the main Recovery Mode menu will open in front of you.
⚠️ Warning: If you see an image of an Android robot with a red triangle or the words "No command" on the screen, just press the Power button once and hold it, quickly press Volume Up.
Navigation in this menu is done with volume buttons (up/down), and the choice of item is confirmed by a short press of the power button. The interface can be in English or Chinese, so it is important to learn the location of the desired items in advance.
Resetting and cleaning partitions (Wipe Data)
Before installing a new version of the operating system, it is strongly recommended that you complete a cleanup of user data, which will prevent possible conflicts between the old settings and the new system files. From the Recovery menu, select Wipe Data (or Clear Data).
Then the system will ask you to confirm the action. Select Wipe All Data and confirm the selection. The formatting process can take from 10 seconds to several minutes. Once completed, the Data wiped successfully message will appear on the screen.
Don't worry about your files if you backed up beforehand, a step that is critical to the stability of MIUI after flashing, and ignoring this step often causes the phone to run slowly or reboot constantly.
☑️ Checklist before installation
Installation of firmware through the Install menu
Once the memory is cleared, go back to the main menu by selecting Back to Main Menu. Now we are interested in the Install section (or Install update.zip to system one in some versions). Click on it to start looking for the update file.
The system will suggest selecting the update.zip file you previously copied to the device's memory. If the file is found, confirm the installation. A log file showing the process of unpacking and writing system partitions will appear on the screen.
Updating partition details...
Install update.zip to system one successfully.It can take 5 to 15 minutes to remove the battery (which is impossible indiscriminately) or interrupt the power supply, and wait for a report of successful completion.
What to do if the installation is interrupted?
Comparison of Redmi 9A firmware methods
There are several ways to restore software, and it's important to understand the differences. The Recovery method is convenient because it doesn't require a PC, but it has limitations on the bootloader version. Other methods can be more powerful, but more difficult to execute.
Below is a table comparing the main features of different approaches to firmware model, which will help you choose the best path depending on the current situation with your device.
| Method | I need a PC. | Need an unlocked Bootloader | Risk of data loss |
|---|---|---|---|
| Recovery (Local Update) | No. | No (usually) | High (at Wipe) |
| Fastboot (Mi Flash) | Yes. | Yes (for region change) | Complete cleaning |
| OTA (Airway) | No. | No. | No (retains data) |
| EDL Mode | Yes. | No (requires an account) | Complete cleaning |
As you can see from the table, firmware through Recovery is the middle ground between simplicity and functionality, allowing you to change the MIUI version or restore the system when a standard air update is unavailable or has hung.
Possible mistakes and ways to solve them
Unforeseen situations can occur during the firmware process, and one of the most common bugs is Can't open zip file or Signature verification failed, which means that the firmware file is corrupted, does not match the model, or the system blocks the installation of unofficial software.
If you see a signature verification error, try downloading firmware from another source or checking the file checksum.Also make sure you don't try to roll back on an older version of Android as Xiaomi is blocking the downgrade.
⚠️ Note: If your phone is stuck on the Mi logo for more than 10 minutes after firmware, try the Wipe Data combination. + Wipe Cache again. If that doesn't work, you'll need to run the Fastboot mode.
Another problem may be the lack of a file. update.zip Make sure the file is at the root of the internal memory, not in the Download folder or MIUI. The path should be as short as possible: /update.zip.
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Successful firmware depends on 90% of the quality of the firmware file and the correct execution of a data reset (Wipe) before installation.
First start and set up system
Once you have successfully installed, go back to the main menu and select Reboot and then Reboot to System. The first run will take longer than usual, 3 to 7 minutes. This is normal, as the system optimizes applications and creates new configuration files.
When the phone turns on, you'll be greeted by a welcome screen. Choose a language, connect to Wi-Fi, and log in to your Mi Account and Google Account. If you've been backing up, the system will prompt you to recover data from the cloud.
After loading the desktop, it is recommended to check the firmware version in the settings to make sure that the update was correct, and it is also worth checking the main modules: the camera, speakers and touch screen.