If you own a Qualcomm-based Android device and want to restore the stock firmware, fix boot loops, or unbrick your phone, QFIL Tool is the right solution. QFIL Tool stands for Qualcomm Flash Image Loader, and it is an official Windows utility developed by Qualcomm Technologies. It allows users to flash firmware directly to the phone’s internal storage using a Windows PC.
This guide covers everything you need to know about using QFIL Tool to flash Android — from downloading the tool to successfully completing the firmware flash. Whether you are a beginner or an experienced user, follow these steps carefully to use QFIL Tool safely. If your device uses a MediaTek chipset instead, check our guide on how to use SP Flash Tool to flash Android on Windows.
What is QFIL Tool?
QFIL Tool (Qualcomm Flash Image Loader) is a Windows-based software utility developed by Qualcomm Technologies. Specifically, it flashes firmware, stock ROM, or recovery images onto Android devices powered by Qualcomm Snapdragon processors. QFIL Tool communicates with the phone in EDL (Emergency Download) mode — a special diagnostic mode that provides direct access to the device storage. Technicians and Android enthusiasts widely use QFIL Tool to fix soft-bricked phones, restore factory firmware, and downgrade or upgrade the operating system on Qualcomm devices.
Requirements / What You Need
- A Windows 10 or Windows 11 PC
- QFIL Tool (latest version) downloaded and installed
- Qualcomm HS-USB QDLoader 9008 Driver installed on your PC
- Stock firmware package (.mbn or .bin files) for your specific device model
- A USB cable (preferably the original cable that came with your device)
- At least 50% battery charge on your phone
- A full backup of your phone data (flashing will erase all data)
Step-by-Step Guide: How to Flash Android Using QFIL Tool
Part 1: Download and Install the Required Software
Step 1: Download and Install QFIL Tool
First, download the latest version of QFIL Tool from a trusted source. Next, run the setup installer and follow the on-screen instructions to install QFIL Tool on your Windows PC. QFIL Tool is part of the Qualcomm Package Manager (QPM) software suite, so make sure you install the complete package.
Step 2: Install Qualcomm USB Drivers
Before connecting your phone, you must install the Qualcomm HS-USB QDLoader 9008 drivers on your Windows PC. To do this, download the driver package and extract it. Then right-click the .inf file and select “Install.” Finally, open Device Manager to confirm the driver installed correctly. Without these drivers, QFIL Tool cannot detect the phone in EDL mode.
Step 3: Download the Stock Firmware Package
Next, download the official stock firmware package for your exact device model from a trusted source. The firmware package typically contains rawprogram_unsparse.xml, patch0.xml, and several .bin or .mbn image files. Save the extracted firmware folder in an easily accessible location before you open QFIL Tool.
Part 2: Boot into EDL Mode and Connect Your Device
Step 4: Boot Your Device into EDL Mode
EDL (Emergency Download) Mode allows QFIL Tool to access your phone’s storage directly. To enter EDL mode, try one of these methods:
- Hold Volume Up + Volume Down + Power together for 5–8 seconds
- Run this ADB command on your PC:
adb reboot edl - Some devices have a hardware EDL test point on the motherboard
Warning: When your device enters EDL mode, the screen goes completely black. This is normal — your device is not dead.
Step 5: Connect Your Phone to the PC via USB
While your device is in EDL mode, connect it to your PC using a USB cable. Then open Device Manager (right-click Start menu > Device Manager) and look under “Ports (COM & LPT).” You should see “Qualcomm HS-USB QDLoader 9008” listed there. If it appears as “Unknown Device,” reinstall the Qualcomm USB drivers and try a different USB port.
Part 3: Configure QFIL Tool and Start Flashing
Step 6: Open QFIL Tool and Select Build Type
Open QFIL Tool on your PC. In the main window, find the “Select Build Type” dropdown menu and choose Flat Build. This is the correct option for flashing complete firmware packages and works with most Qualcomm-powered Android devices.
Step 7: Load the Programmer File
Click “Browse” next to the “Programmer Path” field in QFIL Tool. Navigate to your extracted firmware folder and look for the programmer file. It is usually named something like prog_emmc_firehose_8998_ddr.mbn or prog_ufs_firehose_xxxx.mbn. The exact name depends on your device model and chipset. Select the file and click Open.
Step 8: Load the XML Files
Click “Load XML” in QFIL Tool. A file browser will open — navigate to your firmware folder and select rawprogram_unsparse.xml. QFIL Tool will then prompt you for a second XML file — select patch0.xml from the same folder. Together, these XML files instruct QFIL Tool on how to write each firmware partition onto your device.
Step 9: Start the Flash Process
Once you load both XML files, click the “Download” button in QFIL Tool to begin flashing. You will see a progress bar and live status updates inside QFIL Tool. The process typically takes 3 to 10 minutes, depending on firmware size and USB speed.
Warning: Do NOT disconnect your phone or close QFIL Tool during the process. Interrupting the flash mid-way can permanently damage your device.
Step 10: Reboot and Verify
Once flashing completes, QFIL Tool displays a “Download Succeed” message and your device automatically reboots. The first boot after using QFIL Tool may take 3–5 minutes — this is completely normal, so be patient and do not interrupt it.
Common Errors and Fixes
Error 1: Phone Not Detected in QFIL Tool
This problem usually occurs because the Qualcomm USB drivers are missing or broken. To fix this, uninstall the existing drivers from Device Manager and reinstall the Qualcomm HS-USB QDLoader 9008 driver. Also, try a different USB port and cable. Additionally, confirm the phone is properly in EDL mode before connecting.
Error 2: “Sahara Communication Failed”
This error means QFIL Tool cannot communicate with your device. The most common cause is using the wrong programmer (.mbn) file. Therefore, make sure you use the programmer file that matches your exact device model and Qualcomm chipset. Re-download the correct firmware package if necessary.
Error 3: “Error: Download Fail (0xF0000001)”
This error usually indicates a corrupted firmware file or insufficient disk space. As a result, delete the downloaded firmware, re-download it from a reliable source, and try again. Furthermore, make sure your PC has at least 5 GB of free disk space before starting QFIL Tool.
Error 4: Phone Stuck in Bootloop After Flashing
If your phone keeps restarting after using QFIL Tool, it likely means incorrect firmware was flashed. Re-enter EDL mode, open QFIL Tool again, and reflash using the correct firmware version for your exact device. Additionally, check our guide on how to fix an Android phone stuck on boot screen for more help.
FAQ
Q1: Will QFIL Tool erase all my data?
Yes. Using QFIL Tool to flash firmware performs a full wipe of all data on your device, including apps, photos, contacts, and settings. Therefore, always make a complete backup before you begin the process.
Q2: Does QFIL Tool work on all Android devices?
No. QFIL Tool only works on Android smartphones powered by Qualcomm Snapdragon processors. It does not support MediaTek, Exynos, or Unisoc chipsets. For Samsung devices, use Odin Flash Tool instead.
Q3: Is QFIL Tool safe to use?
Yes, QFIL Tool is safe when you use the right firmware for your specific device. Always download firmware from official manufacturer sources or well-known trusted websites to avoid corrupted or wrong firmware files.
Q4: Can QFIL Tool recover a completely dead Android phone?
QFIL Tool can recover soft-bricked Qualcomm Android devices — such as phones stuck on a boot screen or showing a black screen — as long as the device can still enter EDL mode. However, hardware damage or hard bricks from physical damage require professional repair that QFIL Tool cannot fix.
Conclusion
In summary, QFIL Tool is one of the most powerful and reliable solutions available for flashing Qualcomm-based Android devices on Windows. Whether you need to restore your phone to factory settings, fix a persistent bootloop, or recover a soft-bricked device, QFIL Tool makes the process manageable when you follow the correct steps. Always use firmware designed for your exact device model, back up your data before starting, and never interrupt the flash process once it begins. If you have any questions or run into issues not covered in this guide, feel free to leave a comment below — we are happy to help!