How to flash Xiaomi Redmi 9C NFC 64GB at home: the complete guide

Modern smartphones, including the popular Xiaomi Redmi 9C NFC, require flashing to fix software bugs or update the operating system from time to time. Many users are afraid to perform this procedure on their own, fearing to turn the gadget into a useless “brick.” However, with the right tools and clear instructions, even a beginner can flash the Redmi 9C at home without contacting the service center.

The process of restoring or updating software requires attention to detail and strict adherence to the sequence of actions. In this article, we will discuss all the steps from unlocking the bootloader to the final installation of the global version of the firmware. The most critical mistake is interrupting the process of writing data by 70-80%, which irreversibly damages memory partitions. Get ready to work, be patient and follow the recommendations.

Before you start taking action, you need to make sure you understand the risks and have all the necessary equipment on hand. Firmware is a deep system operation that completely erases user data. Therefore, prior backup of contacts, photos and documents is a prerequisite, without which you can not begin the procedure.

Preparation of equipment and software

To successfully carry out the procedure, you will need not only the Xiaomi Redmi 9C NFC 64GB smartphone itself, but also a specific set of tools. The computer or laptop should be running the Windows operating system, since the main utilities for working with Fastboot and ADB work best in this environment. Using a Mac or Linux is possible, but requires additional driver settings, which can complicate the process for a beginner.

Quality. USB-Cheap cables designed only for charging may not provide enough voltage or information exchange speed, leading to firmware errors. Use the original cable kit or certified analogue with data support, avoiding cheap Chinese substitutes of questionable quality.

There are several key components that need to be installed on the computer, without which interaction with the device is impossible, most notably the ADB and Fastboot drivers, which allow the system to recognize the phone in a special engineering mode, and you will need an archiver to unpack the firmware files and, if necessary, a utility to unlock the bootloader.

• 📱 Smartphone Xiaomi Redmi 9C NFC battery-charged%
• 💻 Computer with Windows and a stable Internet connection
• 🔌 Original. USB-Type-C cable or quality analogue
• 📂 Installed Xiaomi drivers USB Drivers and ADB/Fastboot

⚠️ Attention: Use of damaged or too long USB-cable (over 1.5 meters) may cause communication loss with the device at a critical time of system file writing.

Unlock the bootloader and obtain access rights

Xiaomi’s official firmware has a closed bootloader that blocks the installation of third-party software or global versions of the operating system. To flash a device through Fastboot mode, you must first obtain permission from the company. This process takes from 7 to 168 hours and requires linking the Mi Account to the device.

The first step is to activate the developer mode. To do this, go to Settings → About Phone and quickly click 7-10 times on the MIUI Version until the notification “You’ve become a developer” appears. Then a new section will appear in the advanced settings where you need to enable debugging over USB and allow the installation of applications from unknown sources.

Next, you need to use the official Mi Unlock Tool utility. Download it from the official website, launch it to your PC and log into your Mi Account. Transfer the phone to bootloader mode, holding the power and volume buttons at the same time, then connect it to the computer. The program will check the status of the device and, if all the conditions are met, will issue permission to unlock.

The unlocking process will completely remove all data from the internal drive, so make sure that the backup is created.After successfully executing the command in Mi Unlock, the phone will restart and an open lock icon will appear on the boot screen, indicating a successful completion procedure.

Selecting and downloading the right firmware

Finding the right version of software for Redmi 9C NFC 64GB is a task that requires care. Firmware is divided into several types: Global (global), EU (European), CN (Chinese) and Recovery or Fastboot. For our purpose, we need an archive with the.tgz extension, which is designed specifically for the Fastboot method, not.zip for updating through the menu.

The Global version (Global) contains all the necessary language packages, including Russian, and is optimally configured to work in our region.The Chinese versions (CN) may not have a pre-installed Google Play Store and some of the communication frequencies used by local operators, making them less suitable for everyday use without deep modification.

You should only download files from trusted sources, such as the official MIUI bootloader portal or authoritative forums like 4PDA and XDA Developers. Files from questionable file sharing sites can contain malicious code or be modified, which will lead to unstable operation of the device.

Note the code name of the device. For the Redmi 9C NFC, it may be different from the normal version without NFC. Usually it is a combination of letters and numbers, such as cactus or dandelion (depending on the specific modification of the chipset). Make sure to download the file strictly for your model, as firmware from another device can bring the phone down.

The process of installing firmware through Fastboot

Once you have all the files ready and unlocked, you can go to the immediate firmware process. Unpack the downloaded.tgz archive into the root of the C disk or any short-cut folder so that the title doesn't have Cyrillic characters or spaces. Inside the folder, you'll find a launch script that will do all the work.

Put your smartphone in Fastboot mode. To do this, turn off the device completely, and then press the volume button and, without letting it go, connect the phone to the computer through the computer USB-And the screen should show a picture of a hare repairing an android, and it's going to say, FASTBOOT. If the phone is gone to normal boot, try again, making sure it has been completely turned off.

Launch the file. flash_all.bat (For Windows) on behalf of the administrator. A command prompt will open, which will start the automatic partition writing process. Do not touch the cable or interrupt the process until the Finished. Total time: X.XXs message appears in the window. Any interference could damage the boot sector.

fastboot flash boot boot.img


fastboot flash system system.img




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fastboot reboot

When you run a script, the phone can reboot several times, or the screen can go out and light up again, which is normal behavior. The utility itself controls the sequence of the system images. If the process is stuck in one of the steps for more than 10 minutes, maybe the problem is in the system. USB-port-car.

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Use it. USB-Port 2.0 (black) on the back of the system unit, as ports 3.0 (blue) sometimes cause driver conflicts when firmware is running older devices.

Solving common mistakes and problems

During the Xiaomi Redmi 9C firmware process, users often encounter various bugs that can scare an inexperienced person. One of the most common problems is the FAILED (remote: 'Flash command allow failed') error, which indicates that the device bootloader is locked or not unlocked properly through the official Xiaomi service.

Another common situation is an endless reboot cycle known as Bootloop. If after firmware, the phone constantly shows the MIUI logo and reboots, try resetting through Recovery Mode. To do this, press the power and volume buttons, select Wipe Data and confirm the action. This will delete all data, but often helps to start the system.

If your computer doesn't see your phone in Fastboot mode, check Windows Device Manager. Other Devices or Ports may show an unknown device with a yellow exclamation point, and you may need to manually update the driver to indicate the path to the ADB/Fastboot driver folder.

• 🚫 Authorization error: Check if Mi Account is logged in to Mi Unlock.
• 🔌 Cable Disconnection: Use another USB-port or cable, avoiding front PC ports.
• 💾 Lack of space: Make sure that at least 10 GB is free on the system drive.
• 🛡️ Antivirus: Temporarily disable the antivirus, as it can block the firmware script.

⚠️ Note: If the phone has switched to mode EDL (Emergency Download Mode) and requires an authorized Mi Account for firmware, it will not work with standard methods to restore it - you will need to contact the service with a check for purchase.

Initial system setup and optimization

After successfully installing the firmware and first downloading, you will see a welcome screen. At this point, it is important to set the basics correctly for a comfortable experience. Choose a language, connect to Wi-Fi and log in to your Google account. The system can offer to recover data from the cloud — if you have a fresh backup, this will save time.

Immediately after download, check for security updates. Go to Settings → About Phone → System Update. Even if you just installed fresh firmware, patches that close security vulnerabilities or improve modem stability may have been released in the past.

To optimize the Redmi 9C NFC, you should disable unnecessary system services and advertising, which are included in MIUI by default. In the Passwords and Security section, you can configure facial authorization or fingerprint if your device model supports biometrics.

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After the first download, let the phone lie on charging for 1-2 hours with the screen off. The system will perform background optimization of applications and indexing of files, which will improve performance in the future.

Don't forget to check the work. NFC-You can add a bank card to Google Pay (or its equivalent) and take a test payment action. If the module is not activated, check your settings. NFC In the notification curtain and make sure the function is enabled.