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How to Flash Oppo QCN File via QPST Tool
Restoring or flashing a QCN file on Qualcomm-based Oppo smartphones fixes network issues, invalid IMEI, and baseband errors.
Requirements & Preparation
Restoring or flashing a QCN file on Qualcomm-based Oppo smartphones fixes network issues, invalid IMEI, and baseband errors.
Requirements & Preparation
- Qualcomm USB Drivers installed on PC
- QPST (Qualcomm Product Support Tools) installed
- Enable USB Debugging on the device
- Diagnostic (Diag) Port enabled (via root shell setprop sys.usb.config diag,adb or secret dial codes like *#801# / *#9434#)
- Open QPST Configuration and ensure the Qualcomm Diagnostic Port is detected in the Ports tab.
- Click on Start Clients from the top menu and select Software Download.
- Go to the Restore tab inside the Software Download window.
- Click Browse next to QCN File and select your downloaded .
- Check the Allow phone / file ESN mismatch box.
- Click the Start button to begin flashing the QCN data.
- Once the progress bar reaches 100% and displays Restore Completed, disconnect the phone and reboot it.
Attachments
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