QPST – How to Flash Qualcomm Firmware via Software Download
Learn how to use QPST (Qualcomm Product Support Tools) Software Download to flash firmware on older Qualcomm Snapdragon devices via EDL mode. This guide covers driver setup, EDL entry methods, partition loading, and the key difference between QPST Software Download and QFIL.
Pre-Flight Checklist
Complete ALL items before proceeding. Skipping any step increases the risk of bricking your device.
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Qualcomm USB Drivers installedInstall Qualcomm HS-USB QDLoader 9008 drivers. Device must appear as "Qualcomm HS-USB QDLoader 9008" in Device Manager when in EDL mode.
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QPST (Qualcomm Product Support Tools) installedQPST is a suite that includes QFIL, QPST Configuration, Software Download, and more. Download from Qualcomm Package Manager (QPM) or a trusted source. Install as Administrator.
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Correct firmware package for your exact Qualcomm deviceQPST Software Download uses .mbn or .hex partition image files, or a complete firmware folder with an XML partition map. Confirm the package matches your chipset (e.g. MSM8937, SDM660, SM6225).
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Full data backup completedQPST flashing rewrites partition tables and erases all user data. Back up contacts, photos, and app data before proceeding.
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Battery charged above 40%Power loss mid-flash on Qualcomm devices can permanently damage the bootloader.
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Windows 7 / 10 / 11 PC (64-bit), antivirus disabledQPST is Windows-only. Antivirus software frequently blocks QPST binaries. Disable before running.
Guide Steps
Run the QPST installer as Administrator. It installs several tools including:
- QFIL — Qualcomm Flash Image Loader (for Firehose/EDL flashing)
- Software Download — for STREAMING and SAHARA protocol flashing
- QPST Configuration — device configuration utility
After installation, the Qualcomm USB drivers are automatically included. Reboot your PC if prompted.
Power off your device completely. Enter EDL mode using one of these methods:
- Key combo: Hold Volume Up + Volume Down + Power for 10+ seconds, then connect USB.
- Via ADB (if device boots):
- Test point method: Short the EDL pads on the PCB while connecting USB (advanced, model-specific).
In EDL mode, the device screen stays black. Open Device Manager and verify the device appears as Qualcomm HS-USB QDLoader 9008.
Launch Software Download from the QPST program group (not QFIL — QPST Software Download is a separate tool for STREAMING/DMSS protocol). It opens with a port list on the left side.
Your device should appear in the port list automatically. Click on it to select it.
In QPST Software Download, click the Restore tab. Then:
- Click Start and browse to your firmware folder.
- For multi-partition packages: load the partition XML or select individual .mbn files for each partition (AMSS, BOOT, RPM, TZ, etc.).
- Confirm the MSM target shown matches your device's chipset. If it does not match, stop immediately and verify your firmware package.
Click Download. QPST Software Download flashes each partition in sequence. The progress panel shows partition names and completion status.
Total time: typically 4–12 minutes depending on firmware size.
On completion, QPST shows Download Succeed and the device reboots automatically.
First boot after a QPST flash is slower than normal — Android runs dexopt on all apps. Allow up to 10 minutes before assuming something is wrong.
After booting, go to Settings → About Phone and confirm the build number and Android version match the firmware you flashed.
Congratulations! Flash Successful!
You've successfully completed all steps. Your device should now be running the new firmware. If it's booting normally — you're done! Check the troubleshooting section below if you encounter any issues.
Troubleshooting & FAQ
Common errors and their solutions. Read this before asking for help.
QPST is a suite of tools; QFIL is one of those tools. QPST Software Download uses the older STREAMING/DMSS protocol and works with .mbn files — typically for older Qualcomm chipsets (MSM7xxx, MSM8xxx era). QFIL uses the newer Firehose protocol with rawprogram.xml and .elf programmer files — for modern Snapdragon devices.
Confirm the device is in EDL mode (screen black, Device Manager shows QDLoader 9008). If it shows as Unknown Device, manually install Qualcomm drivers via Device Manager. Try USB 2.0 ports. Run QPST as Administrator.
The firmware package is for a different Qualcomm chipset than your device. Do not proceed — using mismatched firmware can permanently brick the device. Obtain the correct firmware for your exact chip model.
Yes — that is its primary use case. As long as the Qualcomm bootROM (hardware) is intact, QPST can communicate via EDL mode and restore the firmware even if the device shows no signs of life. The EDL/9008 mode is built into the chip itself, not the software.
Reference screenshots for this guide. Click any image to view full size.
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