How to Refuse Xiaomi Poco X3 NFC via Fastboot: The Complete 2026 Guide

Fastboot flashing is one of the most reliable ways to update or restore the Xiaomi Poco X3 NFC, especially if the device is unstable, hovers on the logo or requires a rollback to the previous version of MIUI. This method is suitable for experienced users, as it involves working with the command line and manual installation of firmware. However, even a beginner will cope if he follows the instructions clearly and takes into account all the nuances.

Unlike upgrades via Settings → About → System Update, Fastboot allows you to install any version of MIUI, from the official global to custom (e.g. PixelExperience or LineageOS). The main advantage of the method is the ability to restore the phone even in the event of serious software failures, when other methods are not available. But there are risks: improper actions can lead to a breeze (complete inoperability) of the device.

In this article, we will take a look at the entire process from prep to final setup, including unlocking the bootloader, selecting firmware and solving typical bugs. Particular attention will be paid to the unique features of the Poco X3 NFC (codename surya), such as support for two types of firmware (A/B partition) and the mandatory binding of the Mi Account before unlocking.

Why do you want to play Poco X3 NFC on Fastboot?

Fastboot flashing is not always the first thing to do, but in some cases it's the only way out.

• 🔄 Recoil on the previous version MIUI – if after the update there were bugs, brakes or battery discharge accelerated.
• 🛠️ Recovery after a crash – if the phone is getting stuck on the POCO logo, not turning on or cyclically restarting (bootloop).
• 🌍 Change of firmware region – switch from Chinese (China ROM) to global (Global ROM) or European (EEA ROM).
• 🔓 Install custom firmware — for example, PixelExperience for pure Android or Xiaomi.EU for advanced features.
• 🔒 Removal of viruses or malware – if standard methods do not help.

However, before you start, assess the risks: Incorrect firmware can lead to data loss, IMEI blocking, or even physical breakdown of the NFC module (in rare cases). If your goal is simply to update the system, try the standard method first through Settings.

Preparation for firmware: what to do before the start

Before you try the Poco X3 NFC, follow the necessary preparatory steps to minimize the risks and simplify the process:

1. Create a backup of the data

Fastboot firmware completely erases the device's internal memory.

• 📱 Contacts (export to.vcf via Contacts → Settings → Import/Export).
• 📷 Photos and videos (copy to PC or Google Photos cloud).
• 🔑 Logins and passwords (use Google Smart Lock or export from your browser).
• 🎮 Save games (if cloud backup is supported)

💡

Use the Mi Mover app (available from the Mi App Store) to quickly transfer data to another Xiaomi smartphone over Wi-Fi Direct.

2. Check the bootloader version and device model

Make sure your Poco X3 NFC is codenamed surya (not karna is Poco X3 Pro).

1. Open the Settings → About the device → version of MIUI.
2. Tap 7 times on the kernel version line to activate Developer Mode.
3. Back to Settings → Additionally. → For developers.
4. Find the bootloader version - it must be at least 4.0 (otherwise you will need to update via the Mi Flash Tool).

3. Install the necessary tools on the PC

The firmware will require:

• 🖥️ Windows PC 10/11 (or Linux/macOS with fastboot installed).
• 🔌 Cable USB Type-C (original or high-quality).
• 🛠️ Mi Flash Tool (official utility from Xiaomi).
• 📦 Firmware in.tgz or.zip format (more in the next section).
• 🔑 Qualcomm HS-USB QDLoader 9008 drivers (unless the phone is identified in Fastboot).

If you are using Windows, disable the driver digital signature verification, otherwise the Mi Flash Tool may not recognize the device.

1. Press Win + X → select Command Prompt (Administrator).
2. Enter the command: bcdedit /set nointegritychecks on
3. Restart the PC.

Unlocking the bootloader: a mandatory step before the firmware

Without bootloader unlocking, it is impossible to flash Poco X3 NFC via Fastboot. Xiaomi locks the bootloader on all devices to protect against unauthorized access. The unlocking process takes up to 72 hours and requires a Mi Account to be linked.

Step-by-step:

1. Link your Mi Account to your device: Go to Settings → Mi Account. Log in or create a new account. Activate data sync and find the device in the associated list (Account Settings → Devices).
2. Activate Developer Mode (if not previously) and enable: Settings → Additional → For Developers → Unlock OEM
3. Connect the device to your PC and start the Mi Unlock Tool (download from the official website).
4. Follow the instructions: Enter your Mi Account details. Confirm unlock via SMS (if required). Wait for a message about successful unlock (may take up to 3 days).

⚠️ Warning: Unlocking the bootloader resets all data on the device, including photos and apps. This also voids the warranty (if it's still valid). Once unlocked, some features, such as Mi Pay or Widevine L1 (to view HD- content on Netflix), may not work properly.

Selection of firmware: official vs custom

The type of firmware depends on the stability of the device, the presence of bugs and the availability of functions. For the Poco X3 NFC (surya), the following options are available:

For beginners, we recommend starting with the official global firmware (Global Stable). If you need additional features, try Xiaomi.EU. Custom firmware like PixelExperience or LineageOS requires experience and can deprive you of warranty.

When choosing a firmware, pay attention to:

• 📅 Assemblage Date – The latest versions contain fewer bugs.
• 🌐 Region – firmware for India (IN) may not support NFC for payments in Europe.
• 🔢 Android Version – Poco X3 NFC supports an upgrade to Android 12 (MIUI 14), but no higher.

💡

Never install firmware from another model (such as the Poco X3 Pro or Redmi Note 9 Pro) – this will lead to a device blink!

Step-by-step: Firmware via Fastboot

Now, let's get to the process. Make sure that:

• 🔋 Battery charge of at least 50%.
• 🔌 Cable USB Type-C is serviceable (try a different port on your PC if the device is undetectable).
• 🖥️ Mi Flash Tool and firmware are downloaded into a single folder (e.g., C:\Xiaomi\Poco_X3_NFC).

Step 1: Transfer the device to Fastboot mode

1. Turn off the Poco X3 NFC.
2. Press the buttons Loud down + Power and hold for 10 seconds until the logo Fastboot (robot with a gear) appears.
3. Connect the phone to the PC.

If the device is not identified, check the drivers or try another cable. The device manager (Win + X → Device Manager) should display Android Bootloader Interface.

Step 2: Launching the Mi Flash Tool

1. Unpack the archive with firmware (you should get a file flash_all.bat or a folder with the extension.tgz).
2. Open the Mi Flash Tool on behalf of the administrator.
3. Click Select and select the folder with the firmware.
4. At the bottom, select firmware mode: Clean all – clean (recommended); Clean all and lock – clean + lock bootloader (official firmware only); Save user data – save data (not always working correctly).

Refresh

COM-port

Flash

If the process is suspended on Waiting for device:

• Check the cable connection.
• Reinstall Qualcomm drivers.
• Try another one. USB-port (preferably) USB 2.0).

Step 3: Completion of the firmware

Once installed successfully, the Mi Flash Tool will have a green checkmark and the words Success. The device will automatically reboot. The first turn on can take up to 15 minutes - do not interrupt the process!

⚠️ Warning: If the phone has been stuck on the POCO logo for longer than 20 minutes after you have been firmwareed, try resetting via Recovery: Press Volume Up + Power to log in to Recovery. Select Wipe Data → Wipe All Data. Confirm the reset and restart the device.

Typical errors and their solution

Even with the exact following of the instructions, there can be problems.

If neither method worked, go to the XDA Developers or 4PDA forums, which often provide patches for specific bugs. For example, the Poco X3 NFC has separate themes with solutions for:

• 🔴 Brick after firmware (recovery via EDL).
• 📶 Mobile network problems (file edit modemst1.st).
• 🔋 Quick battery discharge (calibrated via Engineer Mode).

💡

If NFC is missing after firmware, check if your firmware supports this feature. For example, some custom builds turn off NFC to save charge. Turn it on manually in Settings → Connected Devices → NFC.

After Firmware: Setup and Optimization

Once the firmware is successful, you just have to configure the device and get all the functions back on track.

1.Initial setting

• 🌍 Select a language and region (important for Google Play and NFC to work properly).
• 🔑 Sign in to your Mi Account (if required) and Google account.
• 📲 Restore data from the backup (if you have made a backup).

2. Checking of performance

Make sure everything works correctly:

• 📞 Calls and mobile network – check signal and call capability.
• 📶 Wi-Fi and Bluetooth – connect to the network and pair the device (e.g. headphones).
• 💳 NFC Try paying for something through Google Pay.
• 📸 Camera -- take a test shot.

3. Optimization of productivity

The Poco X3 NFC is faster than the other two:

• 🚀 Enable Performance Mode in Settings → Battery → Regimes.
• 🧹 Disable unnecessary applications in Settings → Applications → Application Management.
• 🔄 Update all apps through Google Play.

If you notice lags or overheating, try:

• 🔋 Reset the cache via Recovery (Wipe Cache).
• 📉 Limit background activity in Settings → Battery → Battery Optimization.

FAQ: Frequent questions about Poco X3 NFC firmware