How to Reflash Xiaomi Poco X3: The Complete Guide

Owners of the Poco X3 series often face the need to reinstall the operating system, which can be caused by software failures, a desire to change the firmware region or the need to upgrade to a newer version of MIUI or a new HyperOS shell.

Don’t be afraid of technical manipulation if you carefully study the theoretical part. Modern tools from Xiaomi make the procedure quite transparent, although they require strict adherence to the sequence of actions. In this article, we will discuss all the nuances, from preparation to the final launch of the system.

Before any manipulations begin, it is critical to keep all the important information. The flashing process, especially with a complete cleanup, will irrevocably delete your contacts, photos and installed applications. Back up to Google's cloud or external media. Make sure that the battery charge is at least 60-70%. Interrupting the process due to battery discharge is the surest way to turn the smartphone into a "brick." Use the original cable and USB 2.0 or 3.0 port on your computer, avoiding the front ports of the system unit, where you will need to download the ROMtg image, having a deepening of the system (touching the Fast) and changing the system. 📊 What kind of Poco model do you have? X3?Poco X3 NFCPoco X3 ProPoco X3 GTAnother model

Selection of firmware type: Global, EEA Understanding the differences between regional versions of software is key to successful installation. Global supports most of Google's languages and services by default (EEA) characterized by the absence of some pre-installed applications and stricter compliance with the norms GDPR. The Chinese version (China) often comes out earlier than the rest and contains more features, but it lacks Play Market out of the box and can have issues with Band 20 communication frequencies. When you try to reflash the global version on top of the Chinese version or vice versa without an unlocked bootloader, you will encounter an error. Type of firmware Region Availability of Google Global Stable World There is BL Unlocking to change EEA region Europe There is Standard installation China No (installation required) Recovery Localization Knowledge Recovery Any Depends on version Only Upgrade or Change to the same It is important to consider the architecture of the processor of your device. For Poco X3 NFC (codename thyme) and Poco X3 Pro (codename vayu) firmware are not compatible with each other. Instal firmware installation from X3 Pro on X3 NFC is guaranteed to bring the device down. Always check the code name in the global stepping procedure requires the author to block the reverse. This is a manufacturer protection that you can't get around without a special paid service. First, link your Mi Account to your device in the settings menu. Then turn on the developer mode by clicking on the build number several times in the About Phone section. In the menu "For developers" activate the item "Factory unlocking" and "Debugging by USB». ⚠️ Note: After applying for an unlock in the Mi Unlock app on your PC, you may need to wait 7 to 168 hours. Don't try to bypass the timer by repeating attempts - this will reset the countdown. Use the Mi Unlock Tool utility on your computer. Put your phone in Fastboot mode by pressing the volume button when the cable is connected. If the status in the program is displayed as "Unlocked", you can proceed to the next step. Otherwise, follow the instructions on the program screen. 💡Use the original. USB-Cheap charging cables often do not support data transfer, leading to persistent connection errors in the Mi Flash Tool. Installation of drivers and firmware The right drivers are needed to successfully communicate between the PC and smartphone. They are usually installed automatically with the Mi Flash Tool, but in some cases manual installation is required. ADB Download the archive with the Mi Flash utility from the official website. Unpack it in the root of the C disk so that the path does not contain Cyrillic characters or spaces. Also unpack the downloaded firmware archive (.tgz) into a separate folder. The path to the firmware folder should also be simple, for example, C:\rom\poco_x3_global. Inside the folder with unpacked firmware should not be extra nested folders, script files should immediately go. If you see a folder with the model name, log in.Availability of image file and script flash_all.bat Start Mi Flash on behalf of the administrator. Press the "Refresh" button, and your smartphone with the serial number should appear on the list. If the device is not identified, check Windows Device Manager for an unknown device or Qualcomm. HS-USB QDLoader. Press the "Select" button and point the path to the folder with the unpacked firmware. At the bottom of the window, select the firmware mode. Clean all mode will clean the data completely and install the system. Save user data will try to save files, but can cause errors when changing the region. Recommended mode: Clean all (Full cleaning) ☑️ Checklist before firmware Battery charge > 60%Downloaded Fastboot ROM (.tgz) Unlocked Bootloader Drivers Installed ADBData backup done Completed: 0 / 5 Press the Flash button and wait until the process is complete. The indicator will be filled in green. Don't touch the cable or press the buttons on the phone. The whole process takes from 200 before 600 When you say "success," the phone automatically restarts. ⚠️ Warning: If the process has been stuck at a certain percentage or a red error has appeared, don't panic. USB-cable, reconnect the device to another port and repeat the procedure.Error Recovery In case of a failed firmware, the device can go into a bootloop cycle or hang on the logo. If the phone responds to taps, try entering Recovery mode by pressing the power button and increasing volume. Select language, then Wipe Data → Wipe All Data. If standard methods don't work, you'll need to use it. EDL Emergency Download Mode. To enter it, it often requires disassembling the case and closing test points on the board, or using special commands. ADB, If the debugging was enabled earlier. What to do if the phone does not turn on after firmware?If the screen is black and there is no reaction to the buttons, try to press the power button on the phone. 15-20 If it doesn't work, plug it into your PC and check if the device is defined as Qualcomm. HS-USB QDLoader 9008. If so, it will only help to re-read the EDL With an authorized Mi Account. For users who do not have disassembly experience, the best solution is to contact an authorized service center. Self-intervention in the presence of seals can deprive you of warranty, although for older models such as Poco. X3 This question is less relevant. 💡The most common cause of error is incompatibility between the bootloader version and the firmware. MIUI Make sure to check the compatibility of the Anti-Rollback versions (FAQ) Can I re-flash Poco? X3 Full-featured reflashing with cleaning and changing the region is only possible via PC. Update "over the air" or through the menu Recovery (Select firmware file) allows you to only update to newer versions within the same region or install full versions of Recovery ROM If you don't change the firmware type, will the warranty fly off after you flash it? Official flashing on the global version through the Mi Flash Tool with unlocked bootloader formally does not deprive of the guarantee, but in the event of a breakdown due to the fault of the user (for example, flooding or mechanical damage during disassembly) repair may be denied. Software failures after flashing are not warranty cases. How to check which version of firmware is installed? Go to Settings → On the phone, in the line "Version" MIUI» The letters at the end represent the region: MIUI Global (Global), MIUI EEA (Europe), MIUI RU (Russia/CIS) In version code (e.g, V12.5.3.0.RJGMIXM) The last letters also point to the region. What is Anti-Rollback and how is it dangerous? Anti-Rollback is a security mechanism that prohibits installing an older version of software than the one that was installed earlier. Trying to roll back to the version below the installed security can result in a device lock (Hard Brick).Always check the security index before firmware.