This is where most users make mistakes. Follow the order below carefully:

  • Load XML:

  • Patch XML (Crucial Step):

  • Wait 5–10 minutes. Do not disconnect the cable.

    • A: Yes. Flashing the full firmware (including userdata) will wipe all accounts. However, enable "OEM Unlocking" first if possible.

    Before you start the flashing process, ensure you have the following software and hardware ready:

    Try:

    Device: Oppo CPH1809 (Oppo A3s) Tool: QFIL (Qualcomm Flash Image Loader) OS: Android 8.1 / 9.0 (Depending on Version)

  • Check Device Manager on your PC. You should see: